Roll the black D10 in place of a color card

Perhaps you will find it tedious (as I do) to have to keep shuffling the 5 color cards merely to pick a random color! Since there already is a D10 die in the game, why not use it to select the color! Here is a card to print that lets you do just that:

=> D10 Color Selector (at BoardGameGeek)

Use that link to get the exact size printable card that you can place on top of the Colors card deck. Or just make your own card that specifies what color each die roll selects, like this:

• 1-2 Black
• 3-4 Gray
• 5-6 Red
• 7-8 Green
• 9-10 Blue