249293 2022-12-14 00:29:35 -0800 [web-animations] add interpolation support for custom properties 2023-01-07 13:02:10 -0800 1 1 1 Unclassified WebKit Animations Safari Technology Preview Unspecified Unspecified RESOLVED CONFIGURATION CHANGED InRadar P2 Normal --- 249312 249320 249384 249386 249390 249394 249396 249397 249399 249400 249401 249403 249478 249497 249640 249641 189692 1 graouts webkit-unassigned dino graouts koivisto webkit-bug-importer oldest_to_newest 1919074 0 graouts 2022-12-14 00:29:35 -0800 With the impending support of @property and the existing CSS.registerProperty() support, we should implement interpolation support for custom properties, as tested by https://wpt.fyi/results/css/css-properties-values-api/at-property-animation.html. 1919075 1 webkit-bug-importer 2022-12-14 00:30:09 -0800 <rdar://problem/103341344> 1923847 2 graouts 2023-01-07 13:02:10 -0800 I think we can close this down, the only bug left is bug 249640 and there is no other known work left to complete other than that.