You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Terminal UIArea: what it touches
New FeaturesKind: in v2.1.251,
New FeaturesSection of the release
What
Text that would be italic is now drawn as standout, meaning reverse video, when Claude Code detects it is running under GNU screen or tmux, both of which set a terminal type starting with "screen" and often cannot render true italics.
Details
The check is on the TERM environment variable; other terminals keep real italics.
Evidence
rendersItalicAsStandout
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
