Add option to highlight annotations
As suggested here #1216 (comment 241145) I would suggest to add an option to switch from purpose "commenting" to purpose "highlighting". In the UI there could simply be a "highlight" icon (like a toggle to switch the purpose between commenting and highlighting).
Maybe there is a nice way how to visually distinguish the highlighted annotations in the annotation stream without messing up the clear look but still allows you to clearly recognise the highlight annotations when you scroll through the list.
There should also be a filter option that allows you to only see annotations with purpose "highlight". I guess annotations of type video, image etc. should also be able to be turned into highlight annotations.
Edited by Rittershaus, David