I'm new to sketch and would like to have two of the same shape, but I want one of the shapes to be white and the other one black. As soon as I edit one of the shapes, the other one changes as well. How can I "unlink" the two shapes? Thanks!
Both items are probably used Shared styles, which means the properties are linked.
To unlink just, on the right hand sude, under the object properties, choose "no shared style" under the styles dropdown