In October 2021, the current Saikyo Jump issue came paired with a booklet called "Volume CHOPPER". It contained chapters 151-153 of One Piece in full color. The entire series can be read digitally in full color, but these digital volumes are in 760x1200. There is no native source for these colorizations in higher resolution. This booklet however, comes with the colored pages in physical print, and the resolution is on par with buying the black and white manga physically. This means that unlike an AI upscale, this source has more true detail preserved. I took this opportunity to get my hands on the booklet and scan each page. I made sure each page was 3600 pixels in height, as that's a resolution that's very high but still reasonable for downloading. The colors looked washed out in the scan, but with the help of a friend, we've gotten the color grading as close to the digital version as we can. These files are in .png and quite large, but this was to preserve as much detail as possible. If you want a translated version, I have uploaded one in the style of Viz's English translations.