WaB. Ruins background

A battle background for the yellow ruins locations :) It will replace default one that is used right now. 

I wanted it to have more elements, like urns or even a statue, but after trying it out I decided that those elements are taking too much attention for the background. We still may get a picture of the naked statue in the future :)

Here are the screenshots of how it looks in game:

We still need some more battle backgrounds. One for the other type of the ruins, one for the dirt cave (like in the slime cave), one for the village, and one for Krowly's basement. Last two will take much more work :)