IconTheme.setThemeName
void setThemeName(string themeName = null)Sets the name of the icon theme that the [gtk.icon_theme.IconTheme] object uses overriding system configuration.
This function cannot be called on the icon theme objects returned from [gtk.icon_theme.IconTheme.getForDisplay].
Parameters
themeName | name of icon theme to use instead of configured theme, or null to unset a previously set custom theme |