Christmas Update Beta 4 (3.9.6-beta.4)

[jdev082]

Changes

Remove extend API
Replace all instances of catalyst.native with native as the extend api will be scrapped

Themes

Now fully CTS v1 compliant
Make userchrome button hover use secondary userchrome button color
Make more menu item hover use theme color

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This discussion was created from the release Christmas Update Beta 4 (3.9.6-beta.4).