Oops - fix warning and ensure bg_col is always set to a value.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10248 a1c6a512-1295-4272-9138-f99709370657
diff --git a/apps/gui/color_picker.c b/apps/gui/color_picker.c
index d1d8058..edf6a49 100644
--- a/apps/gui/color_picker.c
+++ b/apps/gui/color_picker.c
@@ -100,6 +100,7 @@
     display->putsxy((display->width-i)/2,6,title );
 
     text_top = display->char_height*2;
+    bg_col = background_color;
     for (i=0; i<3 ;i++)
     {
         if (!display_three_rows)