Yeah, I adore purple hair too x3 hehe.
I know what you mean about the dialogue text boxes. Morgen's is the only one where you can really see the name properly since she has the butterfly on hers to help make it clearer. I tried to fix it for the others by adding a semi-transparent box behind their names, which helped a bit compared to having nothing at all behind them, but yeah, it didn't really work because they're still hard to see properly :( haha.
And yeah, sadly, the VA still playing when you click through the text or use skip text mode is something I have had a problem with ever since I started using Naninovel and I have no idea how to fix it >.< In the settings, it will stop playing a voice line when another voice line begins so that nothing overlaps at least, so it's only really a problem when there is no voice line coming up soon after, like if it goes to a loading screen as you mentioned.
It bothers me too, haha. The problem is, there is a setting to make VA stop playing when a text line has finished printing, and that would work perfectly for stopping all the VA properly if not for the fact that I like to make the sprite's facial expressions change in the middle of text printing as well as at the start or end of lines. Because making those mid-sentence expression changes breaks the function for stopping VA >.< It's because it sees the insertion of an expression change within the code as a line of text ending.
So for example, if it went something like:
“I'm starting to speak a sentence now, [change facial expression from calm to shouting] but I'm getting angrier as I speak.”
The game would start playing the VA right up to the printed comma, and as soon as it hits the command to change the expression, the VA would stop, and it wouldn't resume playing the rest of the line afterwards :(
So it's like I have to choose between whether I want the VA to stop perfectly every time or whether to keep mid-sentence expression changes for sprites >.<
I really like having more sprite expression changes, so I generally stick with that since the VA continuing to play problem only really occurs if a player is skipping lines anyways. And I'm the sort of player who either puts voiced VNs on auto mode or waits for the full line to finish playing before clicking to advance the text, so I only find it to be a bigger issue while skipping text on additional playthroughs trying to get different endings and stuff, haha. Similarly, changing the speed of the text being printed can also screw some things up.
I wish I knew how to make it work better, but sadly, I don't T_T haha.
Anyways, sorry for rambling x3 I just thought I'd try to explain why it's like that, haha.
Thanks so much for taking the time to play through it and leave such a lovely comment ^-^