The art lead gave every agent and tool two banners: one for dark pages and one for light pages, where the white helmet would otherwise vanish. Within a day, six tools had each written their own code to pick the right one.
The shared interface kit now does it: a tool lists both banners, and only the one for the current theme shows, whether the theme comes from the computer's setting or the page's own switch.
Seven tools have switched to it so far. One found its old version had been picking the wrong banner whenever the page's switch disagreed with the computer.
Platform Engineer