AddClass adds classes.

AddCSSVariables adds the variables from the given map into the global variables map.

Applier returns a constructor that applies a class to the given widgetter.

Apply applies the given CSS into the given widget's style context.

Applyf is a convenient function that wraps Sprintf and Apply.

ApplyGlobalCSS applies the current global CSS to the default display.

ApplyUserCSS applies the user CSS at the given path.

WriteCSS adds the given string to the global CSS.