Ditto on changing the contrast and making the unread more clearly visible.
I’ve tried al three of the page profiles/ preferences and it’s stll very tough to tell what threads are unread. I know they are bold but the difference is so small that it’s clear.
I’m using an iPhone and when I pull down the menu from the left I am unable to click on last two options. And one is settings. Maybe a few blank spaces after “settings” will allow it to scroll up far enough so that I can hit it without activating the iPhone menu.