Here is a quote on what Colorimetry setting does from a Geforce forum user: "...This option is mainly for TVs not handling Rec. 709 content played via a Rec. 2020 signal properly.zulu99 wrote:It is already in the firmware also if you not see it in developer option. I can fix in 2 minutes with a new tv settings apk.droidkid wrote:Can it be added on...it's on the 7.2.2 firmware....droidkid wrote:Hi,
love what you did with full android 1.10.
However Colorimetry is missing in the developer option menu...under Media
The fact is that i don't want publish anoter update just for this because if is so necessary, you can trigger it also with an adb command. You should check the getprop and setprop manually.
Anyway if required by many, i can also publish the setting apk and in next version of full Android i will not forget it.
What do this option precisly ? I don't see it in any other Android firmware.
Or, to put it more simply: if you're playing SDR content (like a regular DVD / HD BluRay) on a TV which is able to handle Rec. 2020 content like UHD HDR videos (usually 4K HDR TVs).
Some TVs don't show proper colors if they get Rec. 709 content via a Rec. 2020 signal since they do some improper color mapping.
That's what this option is for, it will automatically switch the signal to Rec. 709 when you're playing SDR content - and to Rec. 2020 when you're playing HDR content.
Bottom line is:
do not turn this option on if you don't have the described setup or if you don't have any problems.
This option is irrelevant if you don't have a Rec. 2020 capable TV / device. I guess nVidia will disable this option in the future if you don't have such a device anyways."
This also helps with the washout colors on the launcher screens and Chrome browser. When selected, the color on screen are more vivid.