There is a new callback, <modname>_is_branded, which, by default,
returns false. It needs to be implemented by modules that want their
logo to be displayed as it is (so without applying any filter to
colour them based on their main purpose).
- Reduce activity icon size: Until MDL-78284 arrives, current activityiconcontainer should be reduced to fit the new UI
- Reduce activity actions button size
- Add styles for activity altconent
- Add styles for activity descriptions and text and media content.
- Add styles to show images inside altcontent with rounded borders.
- Add styles for activity dates
- Add styles for activity visibility
- Add styles for restrictions
- Add styles for activity badge
