Upload your FF4 Ultima ROM, select some options,
then choose "Select These Patches".
You'll see a manifest of your choices,
and a link to download the new ROM to your device.
Some abbreviations used:
Except for the monster graphics color enhancer these are all in development patches, and are not considered finished. Please share any bug reports with the sprite hackers in the #game-artwork channel in the Ultima Discord server!
Not endorsed by Square Enix, and not affiliated with them in any way.