Prompted by the discussion in T305655, this task involves the work with defining what skins – if any – beyond Minerva, New Vector, and Vector Legacy the Usability Improvements be compatible with.
=== Skin support
|Skin(s)|Support Level|Description
|---|---|---
|**New Vector**|Supported|Editing Team will offer the following features //and// fix issues related to them. //Note: issues will be subject to the Editing Team's normal prioritization process.//: [Topic Containers](https://www.mediawiki.org/wiki/Talk_pages_project/Usability#Phase_1:_Topic_containers), [Clear Affordances](https://www.mediawiki.org/wiki/Talk_pages_project/Usability#Phase_2:_Affordances), new ToC, and Sticky header
|**Legacy Vector**, **Minerva Neue**|Supported|Editing Team will offer the following features //and// fix issues related to them. //Note: issues will be subject to the Editing Team's normal prioritization process.//: [Topic Containers](https://www.mediawiki.org/wiki/Talk_pages_project/Usability#Phase_1:_Topic_containers), [Clear Affordances](https://www.mediawiki.org/wiki/Talk_pages_project/Usability#Phase_2:_Affordances)
|**Timeless**, **MonoBook**, **CologneBlue**, **Modern**, **Nostalgia**|NOT Supported|Editing Team will offer the following features //without// providing any guarantee that we will fix issues related to them: [Topic Containers](https://www.mediawiki.org/wiki/Talk_pages_project/Usability#Phase_1:_Topic_containers), [Clear Affordances](https://www.mediawiki.org/wiki/Talk_pages_project/Usability#Phase_2:_Affordances)
=== Done
- [ ] The skins the Editing Team will ensure Usability Improvements support are documented in the `=== Skin support` section above