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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

← All of v2.1.111 Home All releases ←olderv2.1.110 v2.1.112newer→
Claude Code v2.1.111

Auto Theme Detection (Match Terminal)

What

Claude Code can now automatically detect your terminal's light or dark theme and match it, using the "Auto (match terminal)" theme option.

Details
  • A new system theme watcher uses OSC 11 terminal escape sequences to query the terminal's background color
  • The detected luminance determines whether the terminal is "light" or "dark"
  • Supports multiplexers (tmux, screen) with DCS passthrough and fallback detection
  • Theme changes are detected dynamically — if you switch your terminal's theme, Claude Code follows
  • The "Auto (match terminal)" option is now available in the theme picker
Evidence

System theme detection via OSC 11 in Wh_() at line ~185609 (search for "systemTheme: OSC 11") — 0 occurrences in v2.1.110, 2 in v2.1.111

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.111 →