I have been wanting to highlight this for ages about how some of the light effects got totally ruined so I took the time to rip the Gout just to do this as ever since I first saw the film for a long time in it's original version the memories came flooding back.
FLAK SPLASH
Original

Special Edition

FLAK BURSTS
Original

Special Edition

POV Hyperspace
Original

Special Edition

Falcon Hyperspace Engines
Original

Special Edition

I don't think I need to make a description it's as plain as day. I don't think the colors and vibrancy are even in there any more for these effects. Not sure what process caused this but it was damaging.
Are these 2D animations? did they composite this from the original instead of just using the original footage thus destroying the colors?
Original

Special Edition


This is from your comparisons... Where is the blue ring gone from the Flak burst? Did they re-composite these also? no there treated them as the same as the background and turned up the brightness and took out the magenta. Actually over blowing the image whilst color correcting it a bit. But the space shots are different. They have had purposeful color changes made to them.
One Last one about these Hand painted effects and they seem to have come off far worse than other elements but this one is almost up there with the hyperspace cockpit shot also.
Tie Bomber Original

Tie Bomber Special Edition

Washed out.... this is vs the 2004 SE which compacted the problem even more with these hand painted effects. No more brilliant whites is part of the issue but I am not sure what caused this to happen. I am no master of color correction but I fiddled about trying to get the white back and It's gone.
Is there any changes in the 2006 dvd? because it's not as bad in that I don't think (special edition)
EDIT: it's my transfer of the 2004 SE so it's not quite as bad as these pics but it is still bad compared to the original for the brilliant white loss.on the Hand painted effects