Created attachment 319006 [details] Screenshot of current time delimiters In the Timeline view of the Network pane, there are time delimiters. Each one of these delimiters is a gradient, which doesn't look very modern. We should just use a partial solid line for these delimiters, which is more consistent with macOS visual design.
Created attachment 319118 [details] [Image] Instruments timeline ruler The Instruments app does a nice job, and has major/minor tick marks. I think we should adopt the same style.