Some mame(older) games too bright

[floodie]

Good day guyyys,

 

I have noticed quite a few mame games are quite bright, the common theme seems to be all the older ones.. i.e: kung fu master is crazy bright.

 

I could go in and adjust, no probs but theres loads. So if I bring down the settings generically then the older games look fine however aload of the other games look too dark?!..

 

Any ideas tips please??

 

thanks