sway + flameshot config

README.md

The config only works for specific old flameshot versions. It completely breaks new ones. You have been warned

swayflameshotconfig

# Add the two non-commented lines to your sway config file (likely ~/.config/sway/config)

# The first one makes the darkened desktop overlay actually match the desktop and cover it fully
# The second allows the save dialog to appear

# Tested on 
# % sway --version
# sway version 1.12-dev-f4aba225 (Dec  5 2025, branch 'master')
# % flameshot --version
# Flameshot v13.3.0 ()
# Compiled with Qt 6.10.1
# with XDG envs
# XDG_SESSION_DESKTOP=sway:wlroots
# XDG_SESSION_TYPE=wayland
# XDG_CURRENT_DESKTOP=sway:wlroots
# The variable QT_QPA_PLATFORM is unset (I assume it defaults to "wayland", as that also works the same)

for_window [app_id="flameshot" title="flameshot"] floating enable, fullscreen disable, move absolute position 0 0
for_window [app_id="flameshot" title="Save screenshot"] floating enable

This works almost perfectly, but the side panel opens on the leftmost monitor but to the top of the highest monitor.
I have a 4k monitor in portrait on the right, so the side panel is almost unusable.

Almost, because the flameshot window is actually just a floating window, with mod + mouse drag you can move it.

These config lines work for an old version of flameshot but break the new one. If you have updated flameshot and now nothing is shown on screen when launching flameshot gui, please remove the two config lines.