Is there any equivalent to the CSS line-height property in JUCE? I'm making a text label with instructions for an audio plugin, but the lines are VERY squashed together and I'd like to space them out.
No.. the spacing is based on the font height, there's currently no way to override it. It does look like that font is particularly tight!
Is it still true that the height between two lines can't change?
It's true that a Label only uses a single font, but you could draw an AttributedString which contains any mixture of fonts, or use a TextEditor with mixed fonts.