feat: expands theme pack with 10 new themes

[dsmmcken]

Adds Claude.md file that was used to generate a bunch of new themes from VS Code theme schemas, along with adding a selection of 10 new themes to the theme-pack. A few minor tweaks were hand edited, but otherwise the theme files are entirely AI generated.

It is easy to pass a vs code theme schema straight to claude and have it spit out a decent approximation.

Updated the readme in theme pack to note the existence of claude.md,

Added playwright coverage on the themes selection and output.

Some things I noticed:

• editor python tokenization is behind (monaco needs updates)
• markdown codeblock background is globally too light across all dark themes

[Copilot]

Pull request overview

This PR expands the theme-pack plugin with 10 new themes generated from VS Code theme schemas using AI assistance. It adds Playwright test coverage for theme rendering, includes a Claude.md guide for AI-assisted theme generation, and updates documentation.

Changes:

• Adds 10 new themes (Dracula, IntelliJ Dark/Light, Kimbie Dark, Night Owl, Red, Solarized Dark/Light, SynthWave '84, Tomorrow Night Blue)
• Implements Playwright test suite with visual regression testing for all themes
• Adds Claude.md documentation for AI-assisted theme generation
• Updates README with VS Code theme inspection instructions

Reviewed changes

Copilot reviewed 17 out of 57 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
tests/theme.spec.ts	New Playwright test suite for theme visual regression testing
tests/app.d/theme_demo.py	Test dashboard with table, chart, markdown, and UI controls
tests/app.d/tests.app	Adds theme_demo.py to test application manifest
plugins/theme-pack/src/js/src/tomorrow-night-blue-theme.css	Example of new AI-generated theme with complete color palette
plugins/theme-pack/src/js/src/index.ts	Updated to register all 11 themes (1 existing + 10 new)
plugins/theme-pack/src/js/package.json	Adds colorjs.io dependency for theme generation
plugins/theme-pack/src/js/README.md	Documents Claude.md and VS Code theme inspection
tests/theme.spec.ts-snapshots/theme-Tomorrow-Night-Blue-webkit-linux.png	Visual regression baseline screenshot

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[mofojed]

Why the e2e tests failing? Looks like the random seeding is off, but I thought we had that fixed a while ago. Grr

[dsmmcken]

Why the e2e tests failing? Looks like the random seeding is off, but I thought we had that fixed a while ago. Grr

Oh I think I know why, the file scripts are global, I had re-used a variable name _stocks, and did a tail 100 on stocks before charting because I wanted it to be able to initialize and switch themes faster with less data.