def collect_addon_css(node, visited=None):
 css = []
 for addon_config in settings.ADDONS_AVAILABLE_DICT.values():
  css.extend(addon_config.include_css.get('files', []))
 return css

def collect_addon_css ( node , visited = None ) : css = [ ] for addon_config in settings . ADDONS_AVAILABLE_DICT . values ( ) : css . extend ( addon_config . include_css . get ( 'files' , [ ] ) ) return css
collect css includes for all addons-ons implementing hgrid views .