I think I could try bringing up to standard just barely enough where it could be used with assistance without having to teach a lot of math and all that magic stuff.
Prepare yourself:
- select which color you want to match the screens with (gray, white, red/green/blue, etc.), as TN and IPS have different color curves, can't really callibrate that
- select two brightness levels (yes, it has to be two, not one, nor more) where you want to exactly match the brightnesses
- you'll still have to match all 7 brightness levels, even though only two of them will match perfectly
- these settings are lost when you factory reset your 3DS
Early adopters tax, I guess.
If you don't want to deal with this then please tell me, so I can act accordingly.