BRX_MAX_SIZE
fmt->width = clamp(fmt->width, BRX_MIN_SIZE, BRX_MAX_SIZE);
fmt->height = clamp(fmt->height, BRX_MIN_SIZE, BRX_MAX_SIZE);
sel->r.width = BRX_MAX_SIZE;
sel->r.height = BRX_MAX_SIZE;
fse->max_width = BRX_MAX_SIZE;
fse->max_height = BRX_MAX_SIZE;