import palette to blender from txt file whit hex codes
for pass aco or gpl to hex archive use (free software)"Just Color Picker" https://annystudio.com/software/colorpicker/ go to "colour list"and open aco(photoshop) or gpl (gimp )and save as txt file.
this addon change the last palette name to "Hex palette"; you must select the palette called "hex palette" as active
charge txt file from button "select txt file"
write hex color un the box for pluss palette