It is possible in Elite: Dangerous change your Heads Up Display colours.
With 1.1 these are dynamically lit, which makes them look even better. However, prior to 1.1, if the game was updated your custom colours were wiped when the GraphicsConfiguration.xml file was replaced. In 1.1 there is now an XML file where you can "bake in" your custom settings.
\Users\<yourname>\Local\Frontier Developments\Elite Dangerous\Options\Graphics\GraphicsConfigurationOverride.xml
Taking whatever HUD colours you make for yourself using the HUD colour editor, pop the settings into the file like so:-
<?xml version="1.0" encoding="UTF-8" ?>
<GraphicsConfig>
<GUIColour>
<Default>
<LocalisationName>Standard</LocalisationName>
<MatrixRed> 0.25, 0.15, 0.6 </MatrixRed>
<MatrixGreen> 0, 1, 0 </MatrixGreen>
<MatrixBlue> 0.4, 0.6, 0 </MatrixBlue>
</Default>
</GUIColour>
</GraphicsConfig>
Whenever you get updates now, your preferred HUD colour scheme will remain intact.
This is especially useful for me, because unless my HUD is green, the text is much harder to read.