Bugs and other oddities aside, the PWS is still a bit of a mess. Asteroids that are too close don't get coloured, the colour changes with the relative angle from straight ahead and there's little difference in colour between the different hits even in ideal conditions.
It needs a broader range of colours on the return signal, preferably with some more explicit feedback about what they mean. A HUD readout (top right panel, maybe?) listing how many of each type were found would be ideal.
Better still would be to also have the option to filter what it returns, perhaps using the module menu from the right-hand panel. That way you can set it to the commodities you are interested in and not have to second-guess what it's trying to tell you.
It needs a broader range of colours on the return signal, preferably with some more explicit feedback about what they mean. A HUD readout (top right panel, maybe?) listing how many of each type were found would be ideal.
Better still would be to also have the option to filter what it returns, perhaps using the module menu from the right-hand panel. That way you can set it to the commodities you are interested in and not have to second-guess what it's trying to tell you.