diff --git a/AssetChecker.podspec b/AssetChecker.podspec
index ec7af47..e418cf0 100644
--- a/AssetChecker.podspec
+++ b/AssetChecker.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'AssetChecker'
-  s.version          = '0.2.1'
+  s.version          = '0.3.1'
   s.summary          = 'Sanitizes your Assets.xcassets files'
   s.description      = "AssetChecker is a tiny run script that keeps your Assets.xcassets files clean and emits warnings when something is suspicious."
   s.homepage         = 'https://github.com/freshos/AssetChecker'
diff --git a/Classes/main.swift b/Classes/main.swift
index c9cda15..6f9f424 100755
--- a/Classes/main.swift
+++ b/Classes/main.swift
@@ -3,34 +3,11 @@
 import Foundation
 
 // Configure me \o/
-var sourcePathOption:String? = nil
-var assetCatalogPathOption:String? = nil
-let ignoredUnusedNames = [String]()
-
-for (index, arg) in CommandLine.arguments.enumerated() {
-    switch index {
-    case 1:
-        sourcePathOption = arg
-    case 2:
-        assetCatalogPathOption = arg
-    default:
-        break
-    }
-}
-
-guard let sourcePath = sourcePathOption else {
-    print("AssetChecker:: error: Source path was missing!")
-    exit(0)
-}
-
-guard let assetCatalogAbsolutePath = assetCatalogPathOption else {
-    print("AssetChecker:: error: Asset Catalog path was missing!")
-    exit(0)
-}
-
-print("Searching sources in \(sourcePath) for assets in \(assetCatalogAbsolutePath)")
+var sourcePathOption:String?
+var ignoredUnusedNames = [String]()
+var catalogPath: String?
 
-/* Put here the asset generating false positives, 
+/* Put here the asset generating false positives,
  For instance whne you build asset names at runtime
 let ignoredUnusedNames = [
     "IconArticle",
@@ -38,13 +15,49 @@ let ignoredUnusedNames = [
     "voteEN",
     "voteES",
     "voteFR"
-] 
+]
 */
 
-
 // MARK : - End Of Configurable Section
 
-func elementsInEnumerator(_ enumerator: FileManager.DirectoryEnumerator?) -> [String] {
+/// Attempt to fetch source path from run script arguments
+// command line arguments passed as "source:/path/to"
+struct CommandLineArg {
+    let arg: String
+    let value: String?
+}
+
+let commandLineArguments = CommandLine.arguments.map { clArg -> CommandLineArg in
+    let splitArgs = clArg.split(separator: ":")
+    let value = splitArgs.indices.contains(1) ? String(splitArgs[1]) : nil
+    return CommandLineArg(arg: String(splitArgs[0]), value: value)
+}
+
+for arg in commandLineArguments {
+    switch arg.arg {
+    case "source":
+        if let sourcePath = arg.value, sourcePathOption == nil {
+            sourcePathOption = sourcePath
+        }
+    case "catalog":
+        if let catelog = arg.value, catalogPath == nil {
+            catalogPath = catelog
+        }
+    case "ignore":
+        if let ignoreAssetsNames = arg.value, ignoredUnusedNames.isEmpty {
+            ignoredUnusedNames = ignoreAssetsNames.split(separator: ",").map { $0.trimmingCharacters(in: .whitespacesAndNewlines) }
+        }
+    default:
+        break
+    }
+}
+
+guard let sourcePath = sourcePathOption else {
+    print("AssetChecker:: error: Source path was missing!")
+    exit(0)
+}
+
+private func elementsInEnumerator(_ enumerator: FileManager.DirectoryEnumerator?) -> [String] {
     var elements = [String]()
     while let e = enumerator?.nextObject() as? String {
         elements.append(e)
@@ -52,83 +65,103 @@ func elementsInEnumerator(_ enumerator: FileManager.DirectoryEnumerator?) -> [St
     return elements
 }
 
+/// Search for asset catalogs within the source path
 
-// MARK: - List Assets
-
-func listAssets() -> [String] {
-    let extensionName = "imageset"
-    let enumerator = FileManager.default.enumerator(atPath: assetCatalogAbsolutePath)
-    return elementsInEnumerator(enumerator)
-        .filter { $0.hasSuffix(extensionName) }                             // Is Asset
-        .map { $0.replacingOccurrences(of: ".\(extensionName)", with: "") } // Remove extension
-        .map { $0.components(separatedBy: "/").last ?? $0 }                 // Remove folder path
-}
+let assetCatalogPaths: [String] = {
+    if let providedCatalog = catalogPath {
+        return [providedCatalog]
+    } else {
+        // detect automatically
+        return elementsInEnumerator(FileManager.default.enumerator(atPath: sourcePath)).filter { $0.hasSuffix(".xcassets") }
+    }
+}()
 
+print("Searching sources in \(sourcePath) for assets in \(assetCatalogPaths)")
 
-// MARK: - List Used Assets in the codebase
-
-func localizedStrings(inStringFile: String) -> [String] {
-    var localizedStrings = [String]()
-    let namePattern = "([\\w-]+)"
-    let patterns = [
-        "#imageLiteral\\(resourceName: \"\(namePattern)\"\\)", // Image Literal
-        "UIImage\\(named:\\s*\"\(namePattern)\"\\)", // Default UIImage call (Swift)
-        "UIImage imageNamed:\\s*\\@\"\(namePattern)\"", // Default UIImage call 
-        "\\<image name=\"\(namePattern)\".*", // Storyboard resources
-        "R.image.\(namePattern)\\(\\)" //R.swift support
-    ]
-    for p in patterns {
-        let regex = try? NSRegularExpression(pattern: p, options: [])
-        let range = NSRange(location:0, length:(inStringFile as NSString).length)
-        regex?.enumerateMatches(in: inStringFile,options: [], range: range) { result, _, _ in
-            if let r = result {
-                let value = (inStringFile as NSString).substring(with:r.range(at: 1))
-                localizedStrings.append(value)
-            }
-        }
+/// List assets in found asset catalogs
+private func listAssets() -> [(asset: String, catalog: String)] {
+    
+    return assetCatalogPaths.flatMap { (catalog) -> [(asset: String, catalog: String)] in
+        
+        let extensionName = "imageset"
+        let enumerator = FileManager.default.enumerator(atPath: catalog)
+        return elementsInEnumerator(enumerator)
+            .filter { $0.hasSuffix(extensionName) }                             // Is Asset
+            .map { $0.replacingOccurrences(of: ".\(extensionName)", with: "") } // Remove extension
+            .map { $0.components(separatedBy: "/").last ?? $0 }                 // Remove folder path
+            .map { (asset: $0,catalog: catalog)}
     }
-    return localizedStrings
 }
 
-func listUsedAssetLiterals() -> [String] {
+/// List Assets used in the codebase
+private func listUsedAssetLiterals() -> [String: [String]]  {
     let enumerator = FileManager.default.enumerator(atPath:sourcePath)
-    print(sourcePath)
     
-    #if swift(>=4.1)
-        return elementsInEnumerator(enumerator)
-            .filter { $0.hasSuffix(".m") || $0.hasSuffix(".swift") || $0.hasSuffix(".xib") || $0.hasSuffix(".storyboard") }    // Only Swift and Obj-C files
-            .map { "\(sourcePath)/\($0)" }                              // Build file paths
-            .map { try? String(contentsOfFile: $0, encoding: .utf8)}    // Get file contents
-            .compactMap{$0}
-            .compactMap{$0}                                             // Remove nil entries
-            .map(localizedStrings)                                      // Find localizedStrings ocurrences
-            .flatMap{$0}                                                // Flatten
-    #else
-        return elementsInEnumerator(enumerator)
-            .filter { $0.hasSuffix(".m") || $0.hasSuffix(".swift") || $0.hasSuffix(".xib") || $0.hasSuffix(".storyboard") }    // Only Swift and Obj-C files
-            .map { "\(sourcePath)/\($0)" }                              // Build file paths
-            .map { try? String(contentsOfFile: $0, encoding: .utf8)}    // Get file contents
-            .flatMap{$0}
-            .flatMap{$0}                                                // Remove nil entries
-            .map(localizedStrings)                                      // Find localizedStrings ocurrences
-            .flatMap{$0}                                                // Flatten
-    #endif
+    var assetUsageMap: [String: [String]] = [:]
+    
+    // Only Swift and Obj-C files
+    let files = elementsInEnumerator(enumerator)
+        .filter { $0.hasSuffix(".m") || $0.hasSuffix(".swift") || $0.hasSuffix(".xib") || $0.hasSuffix(".storyboard") }
+    
+    /// Find sources of assets within the contents of a file
+    func localizedStrings(inStringFile: String) -> [String] {
+        var assetStringReferences = [String]()
+        let namePattern = "([\\w-]+)"
+        let patterns = [
+            "#imageLiteral\\(resourceName: \"\(namePattern)\"\\)", // Image Literal
+            "UIImage\\(named:\\s*\"\(namePattern)\"\\)", // Default UIImage call (Swift)
+            "UIImage imageNamed:\\s*\\@\"\(namePattern)\"", // Default UIImage call
+            "\\<image name=\"\(namePattern)\".*", // Storyboard resources
+            "R.image.\(namePattern)\\(\\)" //R.swift support
+        ]
+        for p in patterns {
+            let regex = try? NSRegularExpression(pattern: p, options: [])
+            let range = NSRange(location:0, length:(inStringFile as NSString).length)
+            regex?.enumerateMatches(in: inStringFile,options: [], range: range) { result, _, _ in
+                if let r = result {
+                    let value = (inStringFile as NSString).substring(with:r.range(at: 1))
+                    assetStringReferences.append(value)
+                }
+            }
+        }
+        return assetStringReferences
+    }
+    
+    for filename in files {
+        // Build file paths
+        let filepath = "\(sourcePath)/\(filename)"
+        
+        // Get file contents
+        if let fileContents = try? String(contentsOfFile: filepath, encoding: .utf8) {
+            // Find occurrences of asset names
+            let references = localizedStrings(inStringFile: fileContents)
+            
+            // assemble the map
+            for asset in references {
+                let updatedReferences = assetUsageMap[asset] ?? []
+                assetUsageMap[asset] = updatedReferences + [filename]
+            }
+        }
+    }
+    
+    return assetUsageMap
 }
 
 
 // MARK: - Begining of script
-let assets = Set(listAssets())
-let used = Set(listUsedAssetLiterals() + ignoredUnusedNames)
 
+let availableAssets = listAssets()
+let availableAssetNames = Set(availableAssets.map{$0.asset} )
+let usedAssets = listUsedAssetLiterals()
+let usedAssetNames = Set(usedAssets.keys + ignoredUnusedNames)
 
 // Generate Warnings for Unused Assets
-let unused = assets.subtracting(used)
-unused.forEach { print("\(assetCatalogAbsolutePath):: warning: [Asset Unused] \($0)") }
-
+let unused = availableAssets.filter({ (asset, catalog) -> Bool in !usedAssetNames.contains(asset) && !ignoredUnusedNames.contains(asset) })
+unused.forEach { print("\($1):: warning: [Asset Unused] \($0)") }
 
 // Generate Error for broken Assets
-let broken = used.subtracting(assets)
-broken.forEach { print("\(assetCatalogAbsolutePath):: error: [Asset Missing] \($0)") }
+let broken = usedAssets.filter { (assetName, references) -> Bool in !availableAssetNames.contains(assetName) }
+broken.forEach { print("\($1.first ?? $0):: error: [Asset Missing] \($0)") }
 
 if broken.count > 0 {
     exit(1)
diff --git a/Example/AssetChecker.xcodeproj/project.pbxproj b/Example/AssetChecker.xcodeproj/project.pbxproj
index e323d60..53ba587 100644
--- a/Example/AssetChecker.xcodeproj/project.pbxproj
+++ b/Example/AssetChecker.xcodeproj/project.pbxproj
@@ -8,6 +8,7 @@
 
 /* Begin PBXBuildFile section */
 		3333CADC9CDF4D6C0279EAF6 /* Pods_AssetChecker_Tests.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0BF5C510348421D31756E79F /* Pods_AssetChecker_Tests.framework */; };
+		5D7631B4214170BA0017A471 /* Media.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 5D7631B3214170BA0017A471 /* Media.xcassets */; };
 		5D8C437E1FC6CB2100DDF7D0 /* run in Resources */ = {isa = PBXBuildFile; fileRef = 5D8C437D1FC6CB2100DDF7D0 /* run */; };
 		607FACD61AFB9204008FA782 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 607FACD51AFB9204008FA782 /* AppDelegate.swift */; };
 		607FACD81AFB9204008FA782 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 607FACD71AFB9204008FA782 /* ViewController.swift */; };
@@ -35,6 +36,7 @@
 		4E3F248C6D57FAF6F94A24BC /* Pods-AssetChecker_Tests.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-AssetChecker_Tests.debug.xcconfig"; path = "Pods/Target Support Files/Pods-AssetChecker_Tests/Pods-AssetChecker_Tests.debug.xcconfig"; sourceTree = "<group>"; };
 		5512D041F5A3EF8493D7505C /* Pods-AssetChecker_Example.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-AssetChecker_Example.debug.xcconfig"; path = "Pods/Target Support Files/Pods-AssetChecker_Example/Pods-AssetChecker_Example.debug.xcconfig"; sourceTree = "<group>"; };
 		58816321B24F6A6272E52BB1 /* Pods-AssetChecker_Tests.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-AssetChecker_Tests.release.xcconfig"; path = "Pods/Target Support Files/Pods-AssetChecker_Tests/Pods-AssetChecker_Tests.release.xcconfig"; sourceTree = "<group>"; };
+		5D7631B3214170BA0017A471 /* Media.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Media.xcassets; sourceTree = "<group>"; };
 		5D8C437D1FC6CB2100DDF7D0 /* run */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; name = run; path = ../run; sourceTree = "<group>"; };
 		607FACD01AFB9204008FA782 /* AssetChecker_Example.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = AssetChecker_Example.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		607FACD41AFB9204008FA782 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
@@ -71,6 +73,14 @@
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
+		5D7631B2214170A70017A471 /* Resources */ = {
+			isa = PBXGroup;
+			children = (
+				5D7631B3214170BA0017A471 /* Media.xcassets */,
+			);
+			path = Resources;
+			sourceTree = "<group>";
+		};
 		607FACC71AFB9204008FA782 = {
 			isa = PBXGroup;
 			children = (
@@ -100,6 +110,7 @@
 				607FACD91AFB9204008FA782 /* Main.storyboard */,
 				607FACDC1AFB9204008FA782 /* Images.xcassets */,
 				607FACDE1AFB9204008FA782 /* LaunchScreen.xib */,
+				5D7631B2214170A70017A471 /* Resources */,
 				607FACD31AFB9204008FA782 /* Supporting Files */,
 			);
 			name = "Example for AssetChecker";
@@ -219,6 +230,7 @@
 				TargetAttributes = {
 					607FACCF1AFB9204008FA782 = {
 						CreatedOnToolsVersion = 6.3.1;
+						DevelopmentTeam = JEH7PW263G;
 						LastSwiftMigration = 0900;
 					};
 					607FACE41AFB9204008FA782 = {
@@ -252,6 +264,7 @@
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				5D7631B4214170BA0017A471 /* Media.xcassets in Resources */,
 				5D8C437E1FC6CB2100DDF7D0 /* run in Resources */,
 				607FACDB1AFB9204008FA782 /* Main.storyboard in Resources */,
 				607FACE01AFB9204008FA782 /* LaunchScreen.xib in Resources */,
@@ -362,7 +375,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "${PODS_ROOT}/AssetChecker/run --catalog ${SRCROOT}/Resource/Images.xcassets";
+			shellScript = "${PODS_ROOT}/AssetChecker/run --ignore \"icon_red\"\n";
 		};
 		CD3F94CDB64297E52FBE5D36 /* [CP] Check Pods Manifest.lock */ = {
 			isa = PBXShellScriptBuildPhase;
@@ -536,6 +549,7 @@
 			baseConfigurationReference = 5512D041F5A3EF8493D7505C /* Pods-AssetChecker_Example.debug.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				DEVELOPMENT_TEAM = JEH7PW263G;
 				INFOPLIST_FILE = AssetChecker/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				MODULE_NAME = ExampleApp;
@@ -551,6 +565,7 @@
 			baseConfigurationReference = C2AB56DA4BC27DE54F97B2E5 /* Pods-AssetChecker_Example.release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				DEVELOPMENT_TEAM = JEH7PW263G;
 				INFOPLIST_FILE = AssetChecker/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				MODULE_NAME = ExampleApp;
diff --git a/Example/AssetChecker/Base.lproj/LaunchScreen.xib b/Example/AssetChecker/Base.lproj/LaunchScreen.xib
index 0ec11cb..5c995be 100644
--- a/Example/AssetChecker/Base.lproj/LaunchScreen.xib
+++ b/Example/AssetChecker/Base.lproj/LaunchScreen.xib
@@ -1,8 +1,13 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="6214" systemVersion="14A314h" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="14113" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" colorMatched="YES">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6207"/>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14088"/>
         <capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <objects>
         <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/>
@@ -12,7 +17,7 @@
             <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
             <subviews>
                 <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright (c) 2015 CocoaPods. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
-                    <rect key="frame" x="20" y="439" width="441" height="21"/>
+                    <rect key="frame" x="20" y="271" width="441" height="189"/>
                     <fontDescription key="fontDescription" type="system" pointSize="17"/>
                     <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                     <nil key="highlightedColor"/>
@@ -23,19 +28,38 @@
                     <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                     <nil key="highlightedColor"/>
                 </label>
+                <stackView opaque="NO" contentMode="scaleToFill" distribution="fillEqually" translatesAutoresizingMaskIntoConstraints="NO" id="mSC-2P-akU">
+                    <rect key="frame" x="20" y="203" width="440" height="48"/>
+                    <subviews>
+                        <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="icon_blue" translatesAutoresizingMaskIntoConstraints="NO" id="VQY-c8-uEh">
+                            <rect key="frame" x="0.0" y="0.0" width="220" height="48"/>
+                        </imageView>
+                        <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="icon_mauve" translatesAutoresizingMaskIntoConstraints="NO" id="jab-8v-CGz">
+                            <rect key="frame" x="220" y="0.0" width="220" height="48"/>
+                        </imageView>
+                    </subviews>
+                </stackView>
             </subviews>
-            <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+            <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
             <constraints>
+                <constraint firstItem="mSC-2P-akU" firstAttribute="top" secondItem="kId-c2-rCX" secondAttribute="bottom" constant="20" id="0AP-x0-HPz"/>
                 <constraint firstItem="kId-c2-rCX" firstAttribute="centerY" secondItem="iN0-l3-epB" secondAttribute="bottom" multiplier="1/3" constant="1" id="5cJ-9S-tgC"/>
+                <constraint firstAttribute="trailing" secondItem="mSC-2P-akU" secondAttribute="trailing" constant="20" id="D16-TG-81v"/>
                 <constraint firstAttribute="centerX" secondItem="kId-c2-rCX" secondAttribute="centerX" id="Koa-jz-hwk"/>
                 <constraint firstAttribute="bottom" secondItem="8ie-xW-0ye" secondAttribute="bottom" constant="20" id="Kzo-t9-V3l"/>
                 <constraint firstItem="8ie-xW-0ye" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="MfP-vx-nX0"/>
                 <constraint firstAttribute="centerX" secondItem="8ie-xW-0ye" secondAttribute="centerX" id="ZEH-qu-HZ9"/>
                 <constraint firstItem="kId-c2-rCX" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="fvb-Df-36g"/>
+                <constraint firstItem="mSC-2P-akU" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" id="o83-dZ-Eds"/>
+                <constraint firstItem="8ie-xW-0ye" firstAttribute="top" secondItem="mSC-2P-akU" secondAttribute="bottom" constant="20" id="rNM-bb-e4i"/>
             </constraints>
             <nil key="simulatedStatusBarMetrics"/>
             <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
             <point key="canvasLocation" x="548" y="455"/>
         </view>
     </objects>
+    <resources>
+        <image name="icon_blue" width="48" height="48"/>
+        <image name="icon_mauve" width="16" height="16"/>
+    </resources>
 </document>
diff --git a/Example/AssetChecker/Base.lproj/Main.storyboard b/Example/AssetChecker/Base.lproj/Main.storyboard
index 1b5cfbe..8e75148 100644
--- a/Example/AssetChecker/Base.lproj/Main.storyboard
+++ b/Example/AssetChecker/Base.lproj/Main.storyboard
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13771" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="vXZ-lx-hvc">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14113" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="vXZ-lx-hvc">
     <device id="retina4_7" orientation="portrait">
         <adaptation id="fullscreen"/>
     </device>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13772"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14088"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <scenes>
@@ -21,14 +21,17 @@
                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                         <subviews>
-                            <stackView opaque="NO" contentMode="scaleToFill" axis="vertical" translatesAutoresizingMaskIntoConstraints="NO" id="dcL-fK-p7R">
+                            <stackView opaque="NO" contentMode="scaleToFill" axis="vertical" distribution="fillEqually" translatesAutoresizingMaskIntoConstraints="NO" id="dcL-fK-p7R">
                                 <rect key="frame" x="30" y="50" width="315" height="587"/>
                                 <subviews>
-                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" ambiguous="YES" translatesAutoresizingMaskIntoConstraints="NO" id="vXm-mP-bVU">
-                                        <rect key="frame" x="0.0" y="0.0" width="315" height="128"/>
+                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="icon_green" translatesAutoresizingMaskIntoConstraints="NO" id="vXm-mP-bVU">
+                                        <rect key="frame" x="0.0" y="0.0" width="315" height="195.5"/>
                                     </imageView>
-                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" ambiguous="YES" translatesAutoresizingMaskIntoConstraints="NO" id="vDD-em-TGY">
-                                        <rect key="frame" x="0.0" y="128" width="315" height="459"/>
+                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="icon_blue" translatesAutoresizingMaskIntoConstraints="NO" id="vDD-em-TGY">
+                                        <rect key="frame" x="0.0" y="195.5" width="315" height="196"/>
+                                    </imageView>
+                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="icon_turquoise" translatesAutoresizingMaskIntoConstraints="NO" id="ulC-Sy-M6n">
+                                        <rect key="frame" x="0.0" y="391.5" width="315" height="195.5"/>
                                     </imageView>
                                 </subviews>
                             </stackView>
@@ -41,9 +44,19 @@
                             <constraint firstItem="dcL-fK-p7R" firstAttribute="top" secondItem="jyV-Pf-zRb" secondAttribute="bottom" constant="30" id="hvn-lq-suh"/>
                         </constraints>
                     </view>
+                    <connections>
+                        <outlet property="imageViewOne" destination="vXm-mP-bVU" id="YIv-E6-U3L"/>
+                        <outlet property="imageViewThree" destination="ulC-Sy-M6n" id="ezi-jN-g87"/>
+                        <outlet property="imageViewTwo" destination="vDD-em-TGY" id="HyR-HH-v5r"/>
+                    </connections>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="x5A-6p-PRh" sceneMemberID="firstResponder"/>
             </objects>
         </scene>
     </scenes>
+    <resources>
+        <image name="icon_blue" width="48" height="48"/>
+        <image name="icon_green" width="48" height="48"/>
+        <image name="icon_turquoise" width="16" height="16"/>
+    </resources>
 </document>
diff --git a/Example/AssetChecker/Images.xcassets/Contents.json b/Example/AssetChecker/Images.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/Example/AssetChecker/Images.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/Example/AssetChecker/Images.xcassets/icon_green.imageset/Contents.json b/Example/AssetChecker/Images.xcassets/icon_green.imageset/Contents.json
new file mode 100644
index 0000000..234dcea
--- /dev/null
+++ b/Example/AssetChecker/Images.xcassets/icon_green.imageset/Contents.json
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-48.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-96.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-144.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/Example/AssetChecker/Images.xcassets/icon_green.imageset/icons8-144.png b/Example/AssetChecker/Images.xcassets/icon_green.imageset/icons8-144.png
new file mode 100644
index 0000000..bb31ab7
Binary files /dev/null and b/Example/AssetChecker/Images.xcassets/icon_green.imageset/icons8-144.png differ
diff --git a/Example/AssetChecker/Images.xcassets/icon_green.imageset/icons8-48.png b/Example/AssetChecker/Images.xcassets/icon_green.imageset/icons8-48.png
new file mode 100644
index 0000000..9b2c504
Binary files /dev/null and b/Example/AssetChecker/Images.xcassets/icon_green.imageset/icons8-48.png differ
diff --git a/Example/AssetChecker/Images.xcassets/icon_green.imageset/icons8-96.png b/Example/AssetChecker/Images.xcassets/icon_green.imageset/icons8-96.png
new file mode 100644
index 0000000..889a5dd
Binary files /dev/null and b/Example/AssetChecker/Images.xcassets/icon_green.imageset/icons8-96.png differ
diff --git a/Example/AssetChecker/Images.xcassets/icon_purple.imageset/Contents.json b/Example/AssetChecker/Images.xcassets/icon_purple.imageset/Contents.json
new file mode 100644
index 0000000..107fffe
--- /dev/null
+++ b/Example/AssetChecker/Images.xcassets/icon_purple.imageset/Contents.json
@@ -0,0 +1,12 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-icons8_purple.pdf"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/Example/AssetChecker/Images.xcassets/icon_purple.imageset/icons8-icons8_purple.pdf b/Example/AssetChecker/Images.xcassets/icon_purple.imageset/icons8-icons8_purple.pdf
new file mode 100644
index 0000000..2a3fffa
Binary files /dev/null and b/Example/AssetChecker/Images.xcassets/icon_purple.imageset/icons8-icons8_purple.pdf differ
diff --git a/Example/AssetChecker/Resources/Media.xcassets/Contents.json b/Example/AssetChecker/Resources/Media.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/Example/AssetChecker/Resources/Media.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_blue.imageset/Contents.json b/Example/AssetChecker/Resources/Media.xcassets/icon_blue.imageset/Contents.json
new file mode 100644
index 0000000..86cd985
--- /dev/null
+++ b/Example/AssetChecker/Resources/Media.xcassets/icon_blue.imageset/Contents.json
@@ -0,0 +1,12 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-icons8_blue.pdf"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_blue.imageset/icons8-icons8_blue.pdf b/Example/AssetChecker/Resources/Media.xcassets/icon_blue.imageset/icons8-icons8_blue.pdf
new file mode 100644
index 0000000..39025b2
Binary files /dev/null and b/Example/AssetChecker/Resources/Media.xcassets/icon_blue.imageset/icons8-icons8_blue.pdf differ
diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/Contents.json b/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/Contents.json
new file mode 100644
index 0000000..546f6df
--- /dev/null
+++ b/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/Contents.json
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-49.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-96.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-144.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/icons8-144.png b/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/icons8-144.png
new file mode 100644
index 0000000..c1b9360
Binary files /dev/null and b/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/icons8-144.png differ
diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/icons8-49.png b/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/icons8-49.png
new file mode 100644
index 0000000..c69d37c
Binary files /dev/null and b/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/icons8-49.png differ
diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/icons8-96.png b/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/icons8-96.png
new file mode 100644
index 0000000..068c1f6
Binary files /dev/null and b/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/icons8-96.png differ
diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/Contents.json b/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/Contents.json
new file mode 100644
index 0000000..234dcea
--- /dev/null
+++ b/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/Contents.json
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-48.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-96.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-144.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-144.png b/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-144.png
new file mode 100644
index 0000000..a5bbd0e
Binary files /dev/null and b/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-144.png differ
diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-48.png b/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-48.png
new file mode 100644
index 0000000..5e83c9f
Binary files /dev/null and b/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-48.png differ
diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-96.png b/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-96.png
new file mode 100644
index 0000000..ae65ed8
Binary files /dev/null and b/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-96.png differ
diff --git a/Example/AssetChecker/ViewController.swift b/Example/AssetChecker/ViewController.swift
index e92141b..9e1ba68 100644
--- a/Example/AssetChecker/ViewController.swift
+++ b/Example/AssetChecker/ViewController.swift
@@ -10,15 +10,21 @@ import UIKit
 
 class ViewController: UIViewController {
 
+    @IBOutlet weak var imageViewOne: UIImageView!
+    @IBOutlet weak var imageViewTwo: UIImageView!
+    @IBOutlet weak var imageViewThree: UIImageView!
+    
     override func viewDidLoad() {
         super.viewDidLoad()
         // Do any additional setup after loading the view, typically from a nib.
+        
+        imageViewOne.image = UIImage(named: "icon_orange")
+        imageViewTwo.image = UIImage(named: "icon_vermillion")
     }
 
     override func didReceiveMemoryWarning() {
         super.didReceiveMemoryWarning()
         // Dispose of any resources that can be recreated.
     }
-
 }
 
diff --git a/README.md b/README.md
index 611f569..fafd849 100644
--- a/README.md
+++ b/README.md
@@ -18,20 +18,31 @@ Because **Image Assets** files are not safe, if an asset is ever deleted, nothin
 
 AssetChecker is part of [freshOS](http://freshos.org) iOS toolset. Try it in an example App ! <a class="github-button" href="https://github.com/freshOS/StarterProject/archive/master.zip" data-icon="octicon-cloud-download" data-style="mega" aria-label="Download freshOS/StarterProject on GitHub">Download Starter Project</a>
 
-## How
-By using a **script** running automatically, you have a **safety net** that makes using Asset Catalog a breeze.
-
 ## What
+By using a **script** running automatically, you have a **safety net** that makes using Asset Catalog a breeze.  
 
-Automatically (On build)
-  - Raises Errors for **Missing Assets**
-  - Raises warnings for **Unused Assets**
-
+## How
+The script will automatically find the asset catalogs ( `.xcassets`) in your project and serarch your source code to determine if there are errors with them.  It searches for the following types of files:
+- xibs
+- storyboards
+- swift files
+- Obj-C (.m) files
+
+For these types of references:
+- `#imageLiteral(resourceName: )`
+- `UIImage(named: )` (swift)
+- `[UIImage imageNamed: ]` (ObjC)
+- `R.image.name()` (supports [R.Swift](https://github.com/mac-cain13/R.swift))
+
+Then the script will automatically (On build)
+  - Raise Errors for **Missing Assets**
+  - Raise warnings for **Unused Assets**
+ 
 ## Installation
 
 Installation available via Cocoapods.  Add the following to your Podfile:
 ```shell
-pod 'AssetChecker', :git => 'https://github.com/joeboyscout04/AssetChecker.git', :branch => 'pods'
+pod 'AssetChecker'
 ```
 Or copy the script into your project.
 
@@ -39,27 +50,25 @@ Add the following `Run Script` in XCode, this will run the script at every build
 If you installed via Cocoapods, you can use the following script:
 
 ```shell
-${PODS_ROOT}/AssetChecker/run --catalog ${SRCROOT}/Resource/Images.xcassets
+${PODS_ROOT}/AssetChecker/run
 ```
 
 with arguments:
 ```
---catalog Absolute path to your Asset catalog (required)
---source Absolute path to your source directory.  Defaults to $SRCROOT
+--source (optional) Absolute path to your source directory.  Defaults to $SRCROOT
 ```
 
 If you didn't use Cocoapods, use the path of where you copied AssetChecker script:
 
 ```shell
-${SRCROOT}/{PATH_TO_THE_SCRIPT}/AssetChecker.swift ${SRCROOT}/Sources ${SRCROOT}/Resources/Images.xcassets
+${SRCROOT}/{PATH_TO_THE_SCRIPT}/AssetChecker.swift ${SRCROOT}/Sources
 ```
-In this example your source files are located in `/Sources` and your Asset catalog is in `/Resources/Images.xcassets`.
+In this example your source files are located in `/Sources`.
 
 And configure top section of the script :
 ```swift
 // Configure me \o/
 let sourcePath = "/Sources"
-let assetCatalogPath = "/Resources/Assets.xcassets"
 let ignoredUnusedNames = [String]()
 ```
 Run and Enjoy \o/
diff --git a/run b/run
index d056885..b05555d 100755
--- a/run
+++ b/run
@@ -8,6 +8,7 @@ swiftFile="${DIR}/Classes/main.swift"
 
 SOURCE=$SRCROOT
 CATALOG=""
+IGNORE=""
 
 while [[ $# > 0 ]]
 do
@@ -22,6 +23,10 @@ case $key in
     CATALOG="$2"
     shift # past argument
     ;;
+    -i|--ignore)
+    IGNORE="$2"
+    shift # past argument
+    ;;
     *)
 
     # unknown option
@@ -30,6 +35,6 @@ esac
 shift # past argument or value
 done
 
-cmd="$swiftFile $SOURCE $CATALOG"
+cmd="$swiftFile source:$SOURCE catalog:$CATALOG ignore:$IGNORE"
 echo $cmd
 $cmd