Howdy Nosferatu31, OK, this is not as hard to do as it seems, there wont be any "paint" involved in this method, although there is a specialty product you will need to get. It is called "Rub and Buff" gold tinted wax. You can find it in craft supply stores or i will give you a link to suppliers at the end of this post. here is the description of the product: 
"Made from imported carnauba waxes, fine metallic powders, and select pigments, Rub 'n Buff gives almost any surface a new look in minutes. This unique blend gives objects decorated with Rub 'n Buff a finish that no paint can duplicate. It can be applied to any clean, dry surface as well as over previously painted surfaces. One 1/2 oz. tube covers up to 20 square feet. "
I have used this product before and on clear surfaces, it can be applied in a manner that will tint, but not make "opaque". Just wipe it on and wipe it off until you achieve the tint you want. In this particular use, i would suggest using it on the "Inside" of the canopy glass. You can find it by searching for "Rub and Buff" in google, here is the linnks i was given, google UK may provide links to shops in your area. http://www.google.com/search?num=50&hl=en&safe=off&q=RUB+%27N+BUFF+ There were 36,700 results in my google search here in the US version of google, so i am sure you can find some close to you. I hope this helps, have a good day, Greg