irisandClaude Opus 5
73923dbbc3
It was a labelled button beside a tool group that collapses with a drawn chevron -- two controls doing the same kind of thing in two visual languages. Now one `Chevron` composable serves both directions, parameterised rather than copied, since a pair that differs by a minus sign drifts and the drift is a bug in exactly one direction. The comment it replaces argued against an arrow here, on the grounds that the list is laid out upside down. That reasoning was about the code: nobody reading the screen knows the list is reversed, and on screen the newest message is at the bottom, which is where this goes. It draws no text, so the name lives in its content description -- the whole of what a screen reader has, and the answer to "what was that arrow for" later. Verified on the emulator: scrolled up, the chevron appears bottom centre matching the group's; tapped, it returns to the newest message and takes itself away. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>