PrettyPoly - open source 2d level editing tool

I made a 2d level editing tool for. It's written in C# and licensed under MIT.

Features:

• layer based editing
• fill a polygon with a texture.
• place sprites around the border
• setup rules for placement in a direction
• color variation (control over hue, saturation, value, and alpha)
• collision events based on contact normal and layer
• freehand drawing of levels
• neat shaders for floaty bits

Here's a video
Source code for the project in the video can be found here.
You can download the Unity package for it here.

If you'd like to use it in your own project and you're using Git, I suggest adding PrettyPoly and Paraphernalia as submodules instead.

Edit 1:
Here it is in action on a Steven Universe fan game I'm working on.

 

I don't understand what this for.Can it be used with the marching cubes algorithm?

 

It's for 2D game development primarily. I suppose I should have clarified that. I made it to be able to quickly prototype 2D platformer games. You set up some rules for where and how sprites are placed along a path, fill the path with a tiled texture if you want, save a prefab, and then draw your level.