The objective is to fill this 9×9 grid with colors so that each column, each row, and each of the nine 3×3 blocks that compose the grid contains all of the colors.
Edit your colors: (select colors, press ok on color picker, try it, name it, save it)
This will be the empty
Try Custom Color Scheme
Save It
Save txt
Load It
Load txt
This is your save file. Copy and paste this text in notepad or where you want. To load it press the Load txt button, paste it to the area and press the load button!