Sliprail provides built-in themes and supports installable custom themes for the desktop launcher.
Open Sliprail Settings and choose one of the standard themes:
Select All Themes in Settings to manage additional themes. From this panel you can:
Custom themes require Sliprail Lite or Pro. The Free plan can use the standard Follow System, Light, and Dark themes.
Cloud Sync can synchronize the selected theme and eligible themes installed from GitHub. Themes loaded only from a local folder remain local to that device.