EDColourEd is a project I'm currently working on that allows the editing of the HUD colours in Elite: Dangerous, as well as the import and export of HUD configurations, the backup and restoration of both HUD config files and custom key bindings, and editing of Field of View beyond the settings possible with the in-game settings, which can be useful for people using super-large or multi-monitor setups.
For now, EDColourEd is Windows only, but I do plan on releasing a Mac version once the Windows version is finished.
I've uploaded a beta version of EDColourEd with all the main functions more or less implemented and working. It's still not finished yet though so use it at your own risk! Go to the download section to get it.