Nightshade cover to block out the light from the LCD at night. Should work on A10M & A10. Recommended to print in a black filament at 0.2mm layer height. Thickness and other parameters can be adjusted in Openscad. Make sure you download the Geeetech logo stl into the same folder as the scad file.
Thickness test stl (and scad) file included to test how much light can pass through your color/brand of filament. Thicknesses of squares in mm are: 0.2, 0.3, 0.4, 0.5, 0.75, 1, 2, 3, 4, 5.
Thanks to Kanawati for his Geeetech logo. It can be found here: https://www.thingiverse.com/thing:3163963
3D infills reduce the amount of light that can pass through. Increase infill for more transparent / lighter colours.