// 'test_pattern', 32x24px
0x33, 0x33, 0x02, 0xbf, 0x33, 0x33, 0x09, 0x57, 0xcc, 0xcc, 0x05, 0x7f, 0xcc, 0xcc, 0x11, 0x57, 
0x33, 0x33, 0x05, 0x5f, 0x33, 0x33, 0x02, 0xb7, 0xcc, 0xcc, 0x14, 0xbf, 0xcc, 0xcc, 0x02, 0xd7, 
0x33, 0x33, 0x09, 0x5d, 0x33, 0x33, 0x04, 0xb7, 0xcc, 0xcc, 0x12, 0xbf, 0xcc, 0xcc, 0x02, 0xaf, 
0x0a, 0x0f, 0x7f, 0xff, 0x55, 0x0f, 0xbf, 0xff, 0x0b, 0x0f, 0xdf, 0xff, 0x2d, 0x0f, 0xef, 0xff, 
0x45, 0x0f, 0xf7, 0xff, 0x15, 0x0f, 0xfb, 0xff, 0x4d, 0x0f, 0xfd, 0xff, 0x15, 0x0f, 0xfe, 0xff, 
0x4a, 0x0f, 0xff, 0x7f, 0x0b, 0x0f, 0xff, 0xbf, 0x55, 0x0f, 0xff, 0xdf, 0x0a, 0x2f, 0xff, 0xee