Hey there!
I recently found out about this hack, and I've been playing it a bit, really nice work with it!
I found a couple of things which struck me down as a bit off, which hopefully could be addressed as an optional patch of sorts:
1) When applying any of the HP Panel optional patches, there are also some unwanted side-effects to this. The whole "Bag" colour scheme gets changed to that of whatever HP Panel patch is applied unto it, and not only that, but also the entirety of the Pokemon Center's palette is changed as well it seems. I would suggest perhaps adding an optional patch for the HP Panel that restores the original colors, so that the Bag and the Pokemon Center's palettes are also the same as the original game for those that desire it.
2) I noticed that there's no option in the Clothing Color Changes to make both Brendan and May have a colour scheme similar to that of Ruby/Sapphire (without the green and their blue/red but with their yellow/orange bag). Having said that, I made a patch some years ago that addresses this very thing, and gives both Brendan and May a color scheme similar to that of Ruby/Sapphire, but still keeps the new sprites used in Emerald for them:
https://ufile.io/gw8ltbq9
The main one you're looking for is the "Trainer De-green.ips" patch, that's the one that removes the green colour used in all the Player sprites.
The other two should restore Jynx to her uncensored sprite, and the other addresses the trainers that got censored on localization.
3) On the topic of the Pokemon Center, I noticed that the theme for it has now been changed to that of FRLG. Is there a reason why this was done?
I really like the RSE Pokemon Center theme, as I always thought the FRLG theme relied too much on strings that make it feel flat to the ears.
Could an optional patch be done to change the Pokemon Center theme back to that of RSE instead of FRLG, please?
I think that's all I have noticed so far, if there's something else I notice or can help with it, I'll make sure to drop by with more info.
Thanks again for this hack!