adjustBrightness method
Implementation
void adjustBrightness(num value) {
final v = 255 * min(max(value, -1), 1);
_concat([1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1], [v, v, v, 0]);
}
void adjustBrightness(num value) {
final v = 255 * min(max(value, -1), 1);
_concat([1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1], [v, v, v, 0]);
}