Two AutoCAD .acb books ship with the panel and are read the first time it
opens in a session; a loaded book of the same name replaces them. RAL
values are approximate (CC BY-SA 4.0, Wikipedia); sources and licences
are in each file's header and assets/color_books/README.md.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013rGmDUNr1hUf4zo1X3dak8
