Hi, I'm trying to change some of the icons in the game. However, whenever I change certain icons in the corresponding texture file the shape of the previous icon impinges on the new one I inserted. Another thing I realised, when I delete an icon from a texture file the detail of the icon will disappear but a black silhouette will remain in its place. This is proving to be really anoying as I can't find where the information for these icon outline shapes is hidden.

Does anyone have a clue what is causing these black icon outlines and how to get rid of them?

Thanks for any help with this!