$ git clone https://github.com/sharkdp/vivid.git
$ cd vivid && cargo build && cd ..
$ grep -v "^  nord" <vivid/themes/nord.yml >theme-template.yml
$ csplit theme-template.yml /^colors:/1 -f "theme-template"
$ sudo apt install cimg-dev
$ git clone https://github.com/ImageProcessing-ElectronicPublications/palette.git
$ cd palette
$ mkdir build && cd build && cmake ../ && cmake --build .
$ wget https://titis.org/uploads/posts/2022-01/1641518772_4-titis-org-p-nude-breasts-close-up-erotika-4.jpg
$ convert -crop 2298x1041+1878+1560 1641518772_4-titis-org-p-nude-breasts-close-up-erotika-4.jpg cropped.png
$ ./build/cpluspalette cropped.png 16 -k|tail -n+2|tr -s '[:cntrl:]' '\n'|sed s/^.//|awk "/.*/ {print \"  nord\"NR-1\": '\"\$0\"'\"}" >../titty-colors.txt
$ export LS_COLORS=$(../vivid/target/debug/vivid generate <(cat ../theme-template00 ../titty-colors.txt ../theme-template01))
$ clear
$ ls

Works for that too.