Issue #124, case 1: Added test for this case
Actual fix is in stx:libbasic, revision 3563e89f551b.
https://swing.fit.cvut.cz/projects/stx-jv/ticket/124#comment:19
#define ScrollLt_width 11
#define ScrollLt_height 11
static unsigned char ScrollLt_bits[] = {
0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x60, 0x00, 0x70, 0x00, 0x78, 0x00,
0x70, 0x00, 0x60, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00};