Which type of background should be used for this panel. Possible values are "gtk" - the default GTK+ widget background will be used, "color" - the color key will be used as background color or "image" - the image specified by the image key will be used as background.
Wacca irin bango ya kamata a yi amfani da wa wannan fanel. Kima masu yiwuwa sune "gtk" - za'a yi amfani da difwakt na GTK+ bangon widget, "launi" - za'a yi amfani da maɓallin launi kamar launin bango ko "zane" - za'a yi amfani da zanen da maɓallin zane ta ƙayyade zai zama bango.