I am working on a mod with very small units and the ability to zoom out very far (to fit battlecruisers and carriers). I don't want the health bars to get in the way so I've made them very small. I notice that no matter how small the health bar gets or how far zoomed out the camera is, the black border around the health bar remains the same (~2 pixels) which basically turns the health bar into a black 4x4 pixel box when zoomed out far enough. Is there any way to get rid of that border so it's instead a 4x4 color box (which is actually useful as player-owner color coding for when the smaller units are individually too small to be spotted)?
I'm not familiar with the UI editor at all so a detailed walkthrough/explanation would be much appreciated!