Original icon theme to search for its base themes. Included as first element in the resulting array. Must be not null.
Base icon directories to search icon themes.
Name of icon theme which is loaded the last even if it's not specified in inheritance tree. Pass empty string to avoid it. It's NOT loaded twice if some theme in inheritance tree has it as base theme. Usually you don't need to change this parameter since hicolor is required to be used by specification.
Options for icontheme.file.IconThemeFile reading.
Array of unique icontheme.file.IconThemeFile objects that represent the provided icon theme and its base themes.
Recursively find all themes the given theme is inherited from.