Today I brought you a series of 2 PSD Templates used to quickly export the image assets used for the Loading Screen before the login screen and the Loading Screen shown after selecting your character.
A few years ago, I made those PSD files and made a post in RageZone; however, the link expired, and I don't have a backup, so I just made a new one.
Because, you see, it's better to provide the tools for customization instead of looking at 114514 posts of pre-built alternative loading screens, right?
The files are made based on an S8 client, however, I believe this works from S6 onwards to S18, it's just a filename issue anyway.
Before Login Screen Loading: MUS8LoadingTemplate.psd
After Character Select Loading: MUS8LoadingTemplate.psd
How to use:
It's very easy since I've already configured most of the stuff.
1. Open the PSD with Photoshop.
2. Create a new layer and drag it over the top in Layer Panel, do your edit.

3. After you're done, go to File -> Save for Web, For newer Photoshop versions, instead, go to File -> Export -> Save for Web (Legacy)

4. Select all slices, select a JPG Preset, then click Save to open another save dialog.
5. Within that dialog, navigate to a folder you want to save the finished pic, filename is irrelevant, make sure All Slices is selected and save.
6. In that folder, an image folder will be created containing the slices.

7. Rename them to the filename you need:
Notice: There are multiple sets of each loading screen:
Before Login Screen Loading:lo_back_im0X, lo_back_im0X_Blue, lo_back_s5_im0X
After Login Screen Loading: LSBg0Y_X
8. Use your favorite MU Image convertor, convert them to OZJ, overwrite the original files, and you're done.
Download Links: