If you don't know what the renderer is, it is the little square that has three colors: red, green and blue. It is located next to the pause/unpause button. Well, what I actually mean with this suggestion, is to add a feature to this Does-Nothing-Render. Simply, you know the particle BOMB makes a shiny star? Well, how about making this Does-Nothing-Render render the bomb's shiny star? Like, when you put it off, you only see the bomb emitting sort of light effect (Example is the effect in uranium, it looks like it glows), when you turn it on, you will see the bomb as it always was. Since that star thing with "Does nothing", it would be lame to keep it there. So that's why I suggest this.
Thats for reading.. hopefully :D
I like the Does-Nothing-Renderer - it speeds the game up like no other renderer would :D