I'm setting up my first customized Sway desktop on Arch Linux. Sway itself is working, and other changes in my configuration take effect, but the gaps between tiled windows aren't visible. I currently have this in my config:
#gaps
gaps inner 8px
gaps outer 4px
I expected to see the wallpaper between neighboring windows and around the outer edges. What should I change or check?
2 Answers
Sway’s gap values should be plain numbers rather than values with a px suffix. Try:
gaps inner 8
gaps outer 4
Then reload Sway with your usual reload command. The gaps should reveal the desktop background between tiled windows.
Also check whether gaps have been disabled elsewhere in the config. A setting such as `gaps_invisible yes` can hide the empty space, and workspace-specific or output-specific rules may override the global values. Search the config for other `gaps` lines and try `gaps_invisible no` if necessary.

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