Created attachment 248204 [details] example of the bug You can see this in the 2nd level inspector, by adding a new rule to override an icon to use a different image. In the rules from CSS files, the path url(../Images/foo.svg) works. In a rule that is added "via Inspector", the path url(Images/foo.svg) is required instead. This is really confusing when looking at the Rules sidebar, since different stylesheets with different base paths are all shown together. We should think about some way to better communicate the base path for inspector-added styles. Or, provide better linked error messages when the resources don't load. Perhaps add a tooltip for striked out rules to explain why the don't match?
<rdar://problem/20086745>