I like shutter for its post-processing capabilities (hand-drawn red circles!) and comprehensive configuration options.

You can grab a screen region by running

shutter --select 

You can set up a key binding in .config/i3/config like so:

bindsym Print exec shutter --full bindsym Shift+Print exec shutter --select 

It takes a second to load, so you may want to autostart it in the background:

exec shutter --min_at_startup 

Shutter will be accessible via a tray icon then, which gives you many useful options beyond

I like shutter for its post-processing capabilities (hand-drawn red circles!) and comprehensive configuration options.

You can grab a screen region by running

shutter --select 

You can set up key bindings in .config/i3/config like so:

bindsym Print exec shutter --full bindsym Shift+Print exec shutter --select 

It takes a second to load, so you may want to autostart it in the background:

exec shutter --min_at_startup 

Shutter will be accessible via a tray icon then, which gives you many useful options beyond the above.