I was going to post this here, since I was asked how I made a colored coldboot without easy raf creator: the way I built that coldboot: first, I lumped a base coldboot from that thread into a hex editor (HxD will do), removed the first eight bytes (cut them and pasted them into a separate file to be used later), saved both that file and the edited coldboot.raf, used simplyzip to decompress it (78 DA means it's zlib compression, so use that to decompress the coldboot). you'll then have a coldboot file with no extension. open it up in a hex editor, search for VSMX (the coldboot script), at the byte right before it, position the curser, select choose offset from edit, put the starting location as c30 (leave ending location as that offset you positioned the cursor at), and it should highlight that whole area. in photoshop, create a new folder with transparent background, and 1920x1080 pixel size. open your image, and copy and paste it with the tool into the image (when you save it, it will have white background as a .dds, but you can make it black with the paint bucket tool. however, I don't think it matters as only the alpha channel will be what's shown on screen). anyway, save it as .dds (requires nvidia plugin, which is installed separately, with save settings:
DXT5 ARGB 8 bpp | interpolated alpha w/ generate MIP maps set at 2. the image was still too big, so I had to go here and compress it even more:
https://www.aconvert.com/image/compress/ (save it again as a DXT5). now, you have to use dds2gtf, which is part of the sony sdk. I have it if you need it though as well as gtf2dds to remove a coldboot image from a coldboot. once you do that, lump it, the gtf (name is irrelevant), into HxD, select the whole hex, and paste+write it over what's highlighted for the coldboot. remember to do write, not insert, or else it will corrupt the coldboot. once that's done, recompress it as zlib with simplyzip (btw, this must be downloaded as well, but it's easy to find via google), then lump that file (think it's coldboot.zlp or something) into HxD, lump the file with the beginning characters into HxD, copy them, then paste+insert (remember to insert this time) at the beginning of the file, save. rename the extension to raf, then test. that's pretty much how it's done. it seems very convoluted, but it's not that bad. hardest thing was trying to find a way to compress the file further.
additional: I didn't check out the script, but I think you can decompile it with rco mage's vsmx decompiler or something. inside, you can actually make the coldboot move or increase/decrease in size. etc. just some additional info. the one here is very basic, but some of the more advanced ones are very complicated. I think I saw one vsmx script that was over 3,000 lines, which probably wouldn't fit in the flash as these colored coldboots are actually based on themes and not meant for coldboots.