Definitely nice to have this configurable from the settings, but to address all these types of needs Remnote team has implemented Custom CSS
with which we can make Remnote look the way we want.
I’m not a CSS expert, but if you want to increase the font size in your flashcard, you can use the following snippet. Adjust the font-size
value as you need. If you are not familiar with applying custom CSS check this tutorial from Eva - Styling Remnote with Custom CSS. The tutorial is about applying full theme, but you just need include the following snippet to increase the font size.
.spacedRepetition .spacedRepetitionContent,
.spacedRepetition .spaced-repetition__prompt,
.spacedRepetition .rem-text {
font-size: 18px;
}
Also checkout other themes here - https://github.com/ethomasv/RemNoteTheme