It is a mish mash of color and icons that originates from several different mods out there... I got this one from another player on the discovery forums:
The problem is that the buying/selling screens are not aligned properly.
To install it go into your freelancer folder, then your discovery folder... find your interface folder and BACK IT UP FIRST. Then take the new interface folder and copy it over the one in your discovery folder. The only other issue I have with it is that sometimes the map takes a moment longer to load than you would expect
