`ScrollableView`: merge (some) changes from eXept
...to make it work with recent UI builder.
/* XPM */
static char *mac_down_xpm[] = {
/* width height ncolors chars_per_pixel */
"14 14 5 1",
/* colors */
"a c white",
"b c #aaaaaa",
"c c #cccccc",
"d c #333366",
"e c #666666",
/* pixels */
"aaaaaaaaaaaaae",
"acccccccccccce",
"acccddddddccce",
"acccdbbbbdccce",
"acccdbbbbdccce",
"acccdbbbbdccce",
"addddbbbbdddde",
"acdbbbbbbbbdce",
"accdbbbbbbdcce",
"acccdbbbbdccce",
"accccdbbdcccce",
"acccccddccccce",
"acccccccccccce",
"eeeeeeeeeeeeee",
};