you can remove paint. i dont know i always thought it looks better then any of the other options....
I use some wonderful stuff called 'Seaview'. It's a liquid that gets applied to the background before adhering to the glass. It's not a glue, more like a mineral oil or something, and the background can be removed and reapplied as often as you want. Here is the link for info. Click on the demonstration video to see how it works. It's all I will ever use
http://seaviewinfo.com/
