I am digging deep into my Mac's files to try and find how to change the color of my mac's dock. I have been able to change little things like the separator, indicator light, trash can, finder icon, etc. But I cannot find the file where the color of the actual Dock is.
I used this code to immediately go to the Dock folder
/System/Library/CoreServices/Dock.app/Contents/Resources
If you want a picture please ask and I'll edit a good one so you get the idea.
Best Answer
As far as I know, there's no image that you can change to change the background of the Dock. However, you can give the image to DockMod which will let you change the background.