[name=<string>]
[size=<size>]
[class=<string>]
[bgcolor=<color>] | [[bgcolor.r=<red>] [bgcolor.g=<green>] [bgcolor.b=<blue>] [bgcolor.a=<alpha>]]
[selbgcolor=<color>] | [[selbgcolor.r=<red>] [selbgcolor.g=<green>] [selbgcolor.b=<blue>] [selbgcolor.a=<alpha>]]
[bgimage=<file>] | [[bgimage.path=<path>] [bgimage.name=<filename>]]
[selbgimage=<file>] | [[selbgimage.path=<path>] [selbgimage.name=<filename>]]
[margin=<pixel>]
[focusable=<bool>]
[selectable=<bool>]
[up_arrow=<widget name>]
[down_arrow=<widget name>]
[left_arrow=<widget name>]
[right_arrow=<widget name>]
[data=<data string>]
[navigate_up=<widget name>]
[navigate_down=<widget name>]
[navigate_left=<widget name>]
[navigate_right=<widget name>]