Against real websites

fxcss shot --out shots --url https://github.com/AdamXweb/WhiteSurFirefoxThemeMacOS
fxcss shot --out shots --only-live --url https://example.com --url https://news.ycombinator.com

Captures the theme against live sites, light and dark, for showing it off — README screenshots, release notes, an issue thread.

These land in <out>/live/ and are never part of a comparison. That is the whole point of keeping them separate: someone else's page can change its content, title or favicon between two runs, and a theme pull request should not be blamed for it. compare only looks at PNGs at the top level, so they are excluded by construction rather than by a rule someone has to remember.

Generate the release showcase workflow with fxcss init --showcase to refresh these images when a release is published.