A powerful open source screenshot and annotation tool for Linux, Flameshot
has a varied set of markup tools available, which include Freehand drawing,
Lines, Arrows, Boxes, Circles, Highlighting, Blur. Additionally, you can
customise the color, size and/or thickness of many of these image annotation
tools.
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.