Third, I think it would be an important addition to add the ability for someone to change the size of the fonts. Maybe even to choose each type of line (Kanji, katakana, meanings, examples) seperately, and set a different size for each one. Also, being able to change the colors of the kanji strokes, or just set a single color for every stroke, would be nice too. Some colors aren't easy to read on light mode, and others aren't easy to read on dark mode, so it makes it hard for the user to see some strokes sometimes. For example, the yellow color is quite hard to read on light mode, and black is expectedly hard to read on dark mode.