stylize this graphic, I will use it as a board game board, shade the intersections, it has…

"stylize this graphic, I will use it as a board game board, shade the intersections, it has two exits and two goals, each pencil line is a square, in each lane, every third square adds a reward symbol and the next third a penalty symbol, like this in both lanes until reaching the goal, do not add rewards or penalties at the intersections. make it flipchart size in 2D, generate it as a PDF for printing, use blue for one lane and red for the other lane."