Suggestion: make unread easier to see

Enjoying k9 on android but find unread emails difficult to see from read ones. Could unread emails be highlighted better?

Are you using the light theme or the dark theme? What exactly do you think makes it hard for you to see a difference?

Can I suggest going to Settings - Display - Change Colour When Read? I did that and selected a grey colour for read messages - that way unread ones are much more prominent.