Is your feature request related to a problem? Please describe.
Only build in components have preview in inspector but MonoBehaviour shows nothing.
Describe the solution you'd like
There should be script name and all fields show, if there are references to other objects it should shown with proper name and on click it should select referenced object in hierarchy or in explorer
Describe alternatives you've considered
Or just script name and on click it should just open script file
Additional context
Unity Asset Viewer
example: https://github.com/dgileadi/unity-event-lens
example: https://github.com/cblech/unity-file-annotator