Are there any 5.1 firmware with color accuracy?

These tablets are one of the most color accurate displays you can get uncalibrated, it is the primary reason why I got rid of my iPad Air 2 for this one. I am running into an issue where because it has 5.0.2, the apps appear to suspend way too early and lose data. I heard there was some memory leak or something among the lines of that, so I tried to flash them to 5.1 and they all seem to be using the same base rom.

That ROM it uses seems to be using no color profile at all making the colors ridiculously inaccurate by over 10 delta E.

Is it possible to have 5.1 with the correct color profiles?