'themes directory'

def scan(self, themes_dir=[THEMES_DIR, USER_THEMES_DIR]):

    self._themes = []
    for directory in themes_dir:
        files = os.listdir(directory)
        for f in files:
            (f_name, f_ext) = f.split('.')
            if (f_ext == 'colorscheme'):
                self._themes.append(f_name)
