I'm still not sure that coverage percentages are very useful. A good UI that shows which (and when) lines are covered is much more powerful.
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The "line of death", where the browser UI splits between trusted UI elements and UI controlled by the website.
Also argues that HTTP warnings are better than HTTPS padlocks, because there's incentive to spoof padlocks lower on the page.
https://emilymstark.com/2022/12/18/death-to-the-line-of-death.html
I've heard of a 'burger menu' when a button has three horizontal lines on it, but today I heard 'kebab button'. This is similar, a button with '···'. Clearly UI designers are hungry.
I've been compilation buffers in Emacs recently and I really appreciate the error and warning counts shown in the modeline.
I've added the equivalent feature to deadgrep: it shows result counts! Really useful when you're doing big refactorings.
https://github.com/Wilfred/deadgrep