`ScrollableView`: merge (some) changes from eXept
...to make it work with recent UI builder.
#define ComboDn_width 14
#define ComboDn_height 14
static unsigned char ComboDn_bits[] = {
0x00, 0x00, 0x00, 0x00, 0xe0, 0x01, 0xe0, 0x01, 0xe0, 0x01, 0xe0, 0x01,
0xf8, 0x07, 0xf0, 0x03, 0xe0, 0x01, 0xc0, 0x00, 0x00, 0x00, 0xf8, 0x07,
0x00, 0x00, 0x00, 0x00};