Here you can find passport backgrounds originally designed for RogueMaster & SquachWare firmwares.

I edited the passport.c file in RM so a single 128x64px picture is used instead of left + bottom borders picts + coded lines/dots as in ofw.
As well some pixel placement adjustments have been made... Note that depending on which fw I was on when I took screenshot, you'll see minor differences between passports previews (XP font size and position for instance).

Note that those should work totally fine with Momentum.
They would also correctly display under Xtreme but bottom part would be partially covered with their Tot button.
In addition to the folder containing the .png files those are also available as .bmx files format so you can directly use them with those 2 firmwares without having to compile via python. You will still have to RENAME each file according to your fw requirements.

As originally designed by FZ team

Dragon Ball inspired (RogueMaster theme) with Shenron-like border

Inspired by the 5TH ELEMENT movie's multipass

Old parchment scroll passport

Futuristic passport

Moutains and pine tree (TalkingSasquach theme)

Inspired by Super Mario Bros game

Inspired by AD Police Files OAV (1990 prequel of Bubblegum crisis anime)

Inspired by WATCH DOGS game series

Medieval themed passport

Momentum firmware themed passport

Ghost in the Shell - Section 9 themed passport

Inspired by Fallout's Pip-Boy interface