- A tile no longer lifts under the pointer. A finger does not move away
afterwards the way a cursor does, so whatever hover raised stayed
raised until something else was touched: a tile stuck, not answering.
- The ground's blobs wander a closed path on their own clock instead of
sliding back and forth along one line, which read as things moving
rather than as light in a room.
- A bar is one grid now, its rows borrowing its columns, so names of
different lengths no longer start and end their tracks in different
places — two bars that share no baseline cannot be compared, which is
the one thing a stack of them is for. The names read rightward into
their tracks, with room either side.
- A reading on its way somewhere is written to as many decimals as the
value it is heading for. Without that a slider stepping in halves
passed through 22.37460937 on its way to 24: a number nobody asked
for, a different width every frame.
- The brightness column is the same control as the slider widget's,
stood on its end and thicker, and exactly as tall as the disc beside
it. Getting there meant drawing a slider's rail, fill and handle
rather than styling `::-webkit-slider-*`: those need one set of rules
per orientation, each with its own centring quirk, and the handle
landed off its track when the writing mode turned. The native input
stays, laid transparent over the top, so the keyboard, the pointer and
every `aria-` are still its.