Cyan came from the desktop app. On the phone the reference is the system: its global search and its own apps are blue, and an app should look like the place it runs.
Accent #3B82F6 on the same slate, with white on the accent since blue is darker than cyan. The launcher icon and the launch screen follow - a cyan padlock in front of a blue interface would have read as a different app.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The rule exists for screenshots dropped in the repo root during dev. Launcher icons are content: they regenerate from make-icons.ps1, but tracking them means not having to know that - nor depending on System.Drawing to build an APK.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>