#define bigsolidR_width 32
#define bigsolidR_height 32
-static char bigsolidR_bits[] = {
+static unsigned char bigsolidR_bits[] = {
0xff,0xff,0xff,0x7f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xfe,0xff,0xff,0x7f,0xfe,0xff,0xff,0x7f,0xfe,0xff,
0xff,0x7f,0xfe,0xff,0xff,0x7f,0xfc,0xff,0xff,0x3f,0xfc,0xff,0xff,0x3f,0xfc,