Thanks for the clarification. With your reply for guidance, this is now incredibly obvious (palm to face) in retrospect.
For a truly, 100% original skin, you would craft your own versions of every default skin item
Reviewing that default skin item XML file, I am pretty sure I
have replaced all the default skin images with my custom ones - with the exception of those picture borders you mentioned. I need to take a closer look at that. I always have the option to add a "picture frame" turned off, so I guess I forgot about them.
And for an unsolicited opinion, I think the screenshot of your custom picture borders look very nice - I like a good shadow effect. Now that should be the MC default - I agree that the default white frames are uuuuuugleeee! That said, I guess shadows won't work on dark skins. My personal preference would be to have
zero space between all thumbnails - literally edge-to-edge. In fact, I should post that as a another suggestion for this thread. There already exists thumbnail spacing options for none, small, medium, large. I always choose none, but no matter how I tweak the thumbnail size slider, the smallest gap I can get is still about four pixels.
So let's double up on this post. Matt, can you make the "none" thumbnail spacing actually be zero space between thumbnails?
I'll drop you a line re: "Custom resources"....
I appreciate that and I look forward to your message.