Like... change where the red parts and clear parts are? Sure there is a way... What I'd do is remove the old lens, make a mold of it out of clay. Then using a thin clear plastic sheet and glue, make partitions where you want the lens to change colors. Use some sort of castable plastic in the desired colors(you can probably buy clear and color it using a dye of some sort), and pour it into the molds you made. I've never done it, but that is how I'd attempt to do it if I ever had the desire.
The only problem is you'd have to change the shapes of the light bulb housings so the correct parts light up at the correct times. That is much more difficult, I'd recommend using fiberglass and reflective paint for that.