XRGB -> yuv, it's lossing some color.
So this still doesnt make any sense to me I still dont understnad why its darker... I thought XRGB was just the highest quality setting as stated by a fellow OBS Fourms Member... "XRGB has more data like yuy2 12bit per pixel, 32 bit per pixel in XRGB.
Source is important, when you lose data.