https://wccftech.com/pixel-4-p3-image-capture-support/

Pixel 4 will once more be marketed by Google as having the industry’s leading smartphone camera, but it looks like things are about to get even more exciting. According to code located in the Google Camera app, it looks like the company might introduce the Pixel 4 with P3 wide-color image support. It’s not confirmed if Google will port this feature for already released smartphones but if that happens, expect to see a subtle, but noteworthy improvement in image quality.

XDA Developer’s Senior member cstark27 stumbled on some code located in the Google Camera app that allowed for wide-gamut P3 image capture support. Afterward, he managed to compile a build that allowed for the testing of this feature. Sure enough, the results came out as expected, with images showing detail outside of the sRGB color space (25 percent larger range of colors, to be exact). A lot of images captured in the P3 color gamut might not show a massive difference than images shot in the sRGB space, but the former shows results with a bit more color accuracy.