I just did this up really quick for fun. It's an Effect plugin, has a ReadMe file telling you how to install it, use it, etc.
Basically it comes from a post here asking how to do this. I gave the long answer of how to do it manually, then slapped this overly simpnlified Effects template together.
Two drop zones, one at the top, one at the bottom, drop the same clip in each and they're split horizontally in the middle. Tint them as you wish. It shows the original clip in the middle between them.
fcproxuniversity.com/downloads/templates/Split_Tint.zip
I tried really quickly to link the two Drop Zones together so that you could just add one source to fill both, and adjust the positioning of both at the same time. But alas, I can't see a way to link two drop zones like that. The positioning I can, and will do in a future update.
So if anyone does any modifications to this, please post here, let me know. I'd be very interested to see what others do with this.