Themes
Themes can be selected in LOOT’s settings dialog. Two themes are provided with LOOT: the default theme and a dark theme. The default theme can adapt to light and dark system colour schemes. You can also explicitly select its light and dark variants, though their behaviour varies across systems:
On Windows selecting the opposite variant to your system colour scheme will use the selected colour scheme.
On Linux selecting the opposite variant to your system colour scheme may not work correctly and result in a mix of the system colour scheme and elements of LOOT’s variant theme.
Additional themes may be installed in the themes directory in LOOT’s application data directory (at %LOCALAPPDATA%\LOOT on Windows). A theme is defined by a single <theme name>.theme.qss Qt Style Sheet file, or a pair of <theme name>-light.theme.qss and <theme name>-dark.theme.qss files that are used when the system colour scheme is light or dark respectively.