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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.

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Claude Code v2.1.248

Rainbow shimmer styles for the spinner

Not switched on
Useful1 Signal2
UI

Seven rainbow shimmer styles exist for the spinner with nothing selecting them.

Style names red through violet ship unused.

What

Seven new shimmer style names, red through violet, hint at a rainbow treatment for the thinking spinner or its text. Nothing else in this build selects them.

Evidence

rainbow_indigo_shimmer

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 v2.1.248 →