2DS and 3DS XL Bezels for use with Retroach. I have included versions that have the handheld screens as they normally appear and versions with the screens modified. RA has no screen gap setting in the Citra core like the DS core does so the screens display on top of each other touching. Last two pics are of what the unaltered handheld screen looks like in the bezel images included.
Also there is a Retroarch cfg file if you simply place the extracted folders in your overlay folder of RA the .cfg inside will allow you to hot key switch between several colors of the 2DS or 3DS. There is a folder for 2DS and for 3DS. Each contains a read me showing the custom screen settings to use with either. Be sure to set your control map for "next overlay" to change on the fly.
3 color versions of each handheld and each has 2 background versions. The original screen versions will be in a subfolder called "alternate version".