The Etcher 0.6.5 line-params/marker work is alexdont's PR #584, so file the
review at 584-etcher-0.6.5-media-viewer/CLAUDE_REVIEW.md (next to his #581
colors review) instead of a number-less slug — keeps Alex's Etcher reviews
grouped and findable by PR. Header updated to reference #584.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>