I miss the classic blue UI on older FF titles, and was kind of glad to see a bit of it used in PotD, so I would like to suggest a sort of UI theme option. I believe FFXI has this (correct me if I'm wrong). While you're at it, also allow for selection of SFX for the UI the same way you allow it for the chat prompts.

Finally, the dialogue box for talking to NPCs and other dialogues does not seem to fit even the current UI. It feels like a placeholder that the devs forgot was place holder. Would be better if it's a full width dialogue box like in FFXI or even FFXII. The current dialogue box just makes me mash the skip button. Subjective, sure, but I hope it is something put into consideration.