I hope Crimson Knight is okay with me posting this, if you would like to keep the stats in his mod but want the original appearance, these files will make them purple again.
c_lightsaber001.utc
c_lightsaber002.utc
c_lightsaber003.utc
If for whatever reason you missed or forgot to grab the item, and are already off G0-T0's yacht, you can give yourself the item with the command giveitem airspeeder43
I know this thread is almost 10 years old, but if anyone in the future wants to convert a .dds file back to TGA or PNG, this should work.
https://neverwintervault.org/project/nwnee/other/tool/nwn-crunch-enhanced-edition
I'm not to sure why but this mod makes my game crash. I'm unsure why but whenever I removed the mod files, my game stops crashing. It's a bummer that this mod doesn't work for me as I like the look of the robes you've made.