Improve Comment/Annotate UI
The annotation/comment tool in Evince is useful, but could use a helping hand.
- Useful annotation properties to control e.g. apperance are hard to discover (hidden away in a right-click menu)
- The implementation makes an IMO unnecessary distinguishment between highlighting and creating notes. This sub-menu is hidden when using Evince in full screen.
- The current popover could benefit from using a native GTK3 popover.
This is a preliminary mockup: