You spend a lot of time in your cockpit, so why settle for the standard orange color? With this mod, you can change your Elite: Dangerous HUD color to a color of your choice.
This is a mod that requires a tiny bit of tinkering but has been made easy by a player by the name of Arkku. His webpage explains how to recolor the HUD in fairly simple terms. Simply choose the color you like, then copy the text provided in the left-hand box an XML file. Elite Dangerous mods don’t get any more effective than this simple change.