Xcode underlines all occurrences of a symbol that the cursor is on. However, the underline doesn\'t exactly \"pop out\" in the source code. Is it possible to make Xcode high
This is not exactly what you are looking for, but you may want to check out the Polychromatic Xcode plugin (most easily installed via Alcatraz). It gives every symbol a unique color, which is used consistently throughout. So every instance of myVar
might be blue, and every instance of myOtherVar
might be red.