I would be happy to help you learn basically the program would be a loop that looks at every slide and every shape on it. If a shape meets the criteria (the line is a gray) then the code would turn it blue and move on to the next shape.

The gray appears to be a line forecolor of 10921638 while the blue is a forecolor of 16711680

Now a couple things

I basically already wrote the code that will do this however since you want to learn we need to go over it at your speed. You mentioned you dont know enough about macros so do you have any VBA experience or programming experience in general? its ok if you dont we just need to know where to start.

and to John Wilson the most amazing PPT programmer I have ever come in contact with. If I am treading on your territory please let me know and I can back off. I respect you so much.