Fix background color index support.
Fix background color index support.

kevleyski/DirectFB-1,djbclark/directfb-core-DirectFB,kaostao/directfb,dfbdok/DirectFB1,Distrotech/DirectFB,deniskropp/DirectFB,sklnet/DirectFB,lancebaiyouview/DirectFB,jcdubois/DirectFB,jcdubois/DirectFB,Distrotech/DirectFB,djbclark/directfb-core-DirectFB,djbclark/directfb-core-DirectFB,sklnet/DirectFB,kevleyski/DirectFB-1,kevleyski/directfb,kevleyski/directfb,lancebaiyouview/DirectFB,Distrotech/DirectFB,kevleyski/directfb,lancebaiyouview/DirectFB,kaostao/directfb,kevleyski/DirectFB-1,deniskropp/DirectFB,dfbdok/DirectFB1,djbclark/directfb-core-DirectFB,deniskropp/DirectFB,DirectFB/directfb,lancebaiyouview/DirectFB,sklnet/DirectFB,mtsekm/test,deniskropp/DirectFB,kevleyski/directfb,dfbdok/DirectFB1,DirectFB/directfb,mtsekm/test,jcdubois/DirectFB,sklnet/DirectFB,DirectFB/directfb,mtsekm/test,kaostao/directfb,kevleyski/DirectFB-1