I’ve been using Supernotes for a bit and I’d like to suggest a couple of interaction improvements when creating a card:
When creating a new card the cursor defaults to the Heading field. When users want to take a quick note, they don’t necessarily have a heading in mind. They want to get straight to typing the body of their card.
My suggestion: upon creating a card, default the cursor to the body, not the heading. This saves clicks/taps and improves UX.
When you save a card with no heading, it shows as “Untitled”. This can look pretty messy. If a card has no heading, it should be displayed without the heading component. This way, you don’t have unsightly cards reading “Untitled”.
I hope this is helpful.