Tattooz

Ok this is probably been covered but..... the screen that lies between the speedo and tach used for adjusting color etc. Is there any way to mute this screen at night. In my 2015 GT rag top it gets pretty annoying at night being so much brighter than the gauges. Seeing the color does not change with the gauges it stays brighter. I have made a cover that fits over it at night. The dimmer switch works but dins the gauges to low at the same time. Any ideas ?