area: performancebugzilledhelp wantedtype: enhancement
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描述
Animating things like background colors isn't uncommon, should be fairly straight forward to do in webrender without rebuilding the scene and is typically expensive in Gecko without webrender because the latter relies on invalidation->repaint->double-buffering->texture-upload.
While not high priority, it would make for a fun feature to show off webrender's architecture.