Ah, thank you so much for the feedback! It's great to receive some tips for the UI; all of your suggestions sound great! Small indents and then spacing between long paragraphs should be simple enough to implement. As for padding the textbox — just to clarify: you meant to add more empty space between the borders of the textbox and text? If so, that sounds good as well!
For the text: we did want to differentiate the dialogue from narration since singular textboxes often combine the two and, with the arrow and name tags, we didn't want to confuse readers as to when the character is actually speaking vs the narration. With that said, we will certainly consider an option to disable the effect, and/or look into other ways to differentiate between narration and dialogue contained in a single box.
As for the narrative itself, we can only hope that the full experience will fully justify this prologue's existence, but that remains to be seen (though, being able to receive this feedback justifies it on the dev side of things, hehe). There isn't a lot of time left, so the possibility of getting beta testers beyond our editors and then implementing their feedback is a little iffy, but, as you say, it's probably a good idea. We'll look into this a bit more and see what we can do!
We really appreciate you letting us in on your overall impressions — we'll be sure to take them into account moving forward. We may or may not be adjusting this release just yet, but the prologue will be featured as optional side content in the main game and should have any of the aforementioned fixes for anyone who misses out on it here.
Thank you for your support and well-wishes, that means the world to us!