This didn't take as long as I thought it would.
http://casofwar.hard-light.net/images/FullNebPack1.rarThis is release 1, and let me clear a few things up about it. You will need release 3.6.14 to use these properly. As the title says, these are for full nebula use, I reccomend using nblack with it, as it looks best. The poofs were going to be interesting until I figured out that a multi colored poof would work for all the backgrounds, as the color of the background itself would subdue or in some cases negate parts of the poof. What this means is that you can use the same poofs with any of the backgrounds, and they will look different with those backgrounds. Anyway, included are 6 poofs, labelled Poof100-01, Poof100-02, Poof75-01, Poof75-02, Poof50-01, and Poof50-02. 50, 75, and 100 are the opacity levels of the poofs, two styles in each opacity level. Why the hell are they 256 color pcx? In the Source Code Project subforum Zacam stated that poofs currently did not accept DDS files. So I went and made them as pcx. The color level difference was negligible in game so i went with the 256.
As always a neb marked with D, as in Skybox-FN-DRed, means Dark. The following images are screens of each skybox.
Pink and purple background neb
Purple background neb
Dark Purple background neb
Blue background neb
Dark Blue background neb
Green background neb
Dark Green background neb
Red background neb
Dark Red background neb