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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.308 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeReleasesv2.1.246entry #109

Claude Code v2.1.246 ·

Diff colours follow your theme

Diff colours now come from your theme, using new added and removed theme keys.

Use it now Improvements
JSON All of v2.1.246
Use it nowTier: how much it should matter to you
3Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ThemesArea: what it touches
ImprovementsKind: in v2.1.246,
What probably matters to youSection of the release
What

Added and removed lines in diffs now take their colours from the active theme rather than fixed values, via the theme keys diffAdded, diffRemoved, diffAddedDimmed, diffRemovedDimmed, diffAddedWord and diffRemovedWord.

Details
  • Theme colour strings in rgb(), #rrggbb, #rgb, ansi256() and ansi: form are all parsed.
  • Those keys are part of the diff render cache key, so switching theme redraws diffs rather than reusing stale colours.
Evidence

diffAddedDimmed

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Read from
Names in the bundlediffAddeddiffRemoveddiffAddedDimmeddiffRemovedDimmeddiffAddedWord
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeFixed custom theme diff colors (diffAdded/diffRemoved and their dimmed variants) being ignored in diffs and the /theme preview

See this entry in the whole of v2.1.246 →

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