A close x on the tuning lab. It runs the same toggle as the T key and the collapsed chip, so all three ways of closing the panel agree about the cursor.
🧼 Improved
The tuning lab has a new look: a near-black card with a 16px radius and a hairline border, the kit accent on the active control, and pill slider tracks with a flat accent fill. Key chips are pure white on their plate so the legend stays readable against it.
Text in the panel has a hierarchy now. The stylesheet declared no font size at all and rode the engine default; it sets 16/14/13 with real line heights.
A dial dragged to the bottom of its range still reads as a pill instead of an empty track, and the track lights up under the cursor.
🪛 Fixed
The tuning lab was drawing with almost none of its intended styling. Its stylesheet carried six border shorthands with a border-style in them, which is a parse error in the engine's CSS that throws away the entire sheet. Those are gone, along with two box-shadows, an inset shorthand and a gradient fill the engine does not support.
⚠️ Known Issues
The dials are still one long list. Grouping them behind Engine, Suspension, Tires and Brakes tabs needs real tab state, so it is a later build.