If your every doing anything with pen this will help you. In the set pen color to () you can put a number into it instead of having to select a color. For instance you can have a variable 'color' and then put down set pen color to (color) Now what number? Here is where this will come in handy. The color is represented by the dot in the middle of the screen. You can change the amount of red (r) with the q and a keys You can change the amount of green (g) with the w and s keys You can change the amount of blue (b) with the e and d keys You can change the opacity (a) with the r and f keys. The dot will then immediately update to the right color and the appropiate number will be shown in the 'pen color' list which you can then paste and copy into your own project.