Looking to change the color underneath the skin so I've been making a character in Blender and long story short my topology is horrendous but has produced a really cool effect that I want to play with but don't know how.

Basically there are these white lines underneath the skin which I painted on using vertex paint and the node editor. Here's a photo.

They appeared when, in vertex paint, I began using the blend brush. I think basically the blur brush brought these white lines out on my horrendous topology and highlighted the seams, bringing out some glowing white material underneath that I don't know how to edit. 

My question is this: 

How do I change the color of these lines?

I want to change them to a red color or possibly a blue or purple so they look like alien markings but cannot for the life of me figure out how to.

If you need any more information please let me know. Hope to hear from you soon!

Here is the link to the file.




Andrew.
Use Bake, and then edit them outside blender (for example with Gimp).
The vertex paint can replaced using dynamic paint.
You can bake the vertex colors at the render panel. There, you will find the bake mode &quot;Vertex Colors&quot; which will export the vertex painting.
In your image editing software, you can change the hue or brightness or whatever and after image processing, you can bring it back as a texture.
As for applying the modified vertex paint to your model, the following QA will be helpful.
How to bake uv map texture to vertex color (selected to active)?