Here are some photos of my dung beetle knight. I'm trying to show the colour change but it's not super apparent. I used spray on 'Spazstix' colour changing paint but there are so many facets on the model I don't think it works as well as it might on an RC car for which the paint was intended. If you open a picture and scroll through them you can see the subtle change from purple to teal though. Even if it doesn't turn out super vibrant, it's better than a flat black beetle!