Theme base (legacy vs. next)

By default, any custom theme will be based on the legacy light theme. To change the TriliumNext theme instead, add the #appThemeBase=next attribute onto the existing theme. The appTheme attribute must also be present.

When appThemeBase is set to next it will use the “TriliumNext (auto)” theme. Any other value is ignored and will use the legacy white theme instead.

Overrides

Do note that the TriliumNext theme has a few more overrides than the legacy theme, so you might need to suffix !important if the style changes are not applied.

:root {
	--launcher-pane-background-color: #0d6efd !important;
}