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Danny White
512201dcd0
## What kind of change does this PR introduce? Chore. ## What is the current behaviour? Classic Dark remains available across the shared theme library and several apps. Studio now supports System, Dark, and Light as its theme modes, but still carries compatibility paths for Classic Dark. ## What is the new behaviour? - Removes Classic Dark from shared theme options, application commands, stylesheets, previews, examples, and replay handling. - Deletes the Classic Dark and faux Classic Dark stylesheets. - Removes the now-unused Classic Dark branches from Studio theme colour controls. - Migrates `classic-dark` to `dark` so first rendered frame renders Dark (not Light) | After | | --- | | <img width="1458" height="1778" alt="CleanShot 2026-09-18 at 11 07 40@2x" src="https://github.com/user-attachments/assets/679bf87f-a3c1-4599-ad2f-292d98d0b856" /> | ## To test 1. In Studio, open Account Preferences → Appearance. Confirm the available themes are System, Dark, and Light, and that theme colour controls still work in each resolved mode. 2. Set the `theme` local storage value to `classic-dark`, then reload Studio. Confirm it renders as Dark immediately and the stored value becomes `dark`. 3. Open the theme switcher in Design System, Learn, and UI Library. Confirm Classic Dark is no longer available and Light, Dark, and System still apply correctly. <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **Changes** * Removed the Classic Dark theme option from theme menus and settings across the application. * Classic Dark selections are automatically migrated to the standard Dark theme. * Updated theme documentation and demonstrations to list only System, Light, and Dark. * Removed Classic Dark styling and preview support; existing Dark, Light, and System themes remain available. <!-- end of auto-generated comment: release notes by coderabbit.ai -->
Styles
When to write custom styles
Tailwind should be sufficient to cover the majority of styling needs. We typically only write custom styles here in the event where we're working with an external library and we need to override some styles (e.g Monaco, or even our own UI library).
Ideally, keep custom styling here to a minimum, use tailwind directly in the pages and components where possible, so that we have less code to maintain.
If you're writing custom styles
Group custom styles into separate stylesheets based on their context. For styles which are generic and global, we can write them in main.scss.