Everything else in the sweep is mechanical. These three need eyes, because each one either adds a token to the ramp or moves something on screen. Nothing here is applied to the site yet.
Today it is #5c5c5c at 6.69:1 — a fifth neutral that is not on the ramp, and lands exactly halfway between --ink-2 and --ink-3. Read a full sample, not a swatch. Use Solo to see them one at a time; side by side, the lighter grey always looks lighter than it really is.
A figure background, the wireframe bars, the progress rail and the ghost button’s border. All four are almost paper. The question is whether they are one surface or a scale — look at the wireframe bars against the figure behind them, since that is the only pairing where the steps do any work.
Schemes 2 and 3 are pixel-identical — they differ only in whether the mockup greys are named. Scheme 1 flattens the wireframe bars into the figure behind them. The ghost border moves in all three: #dfdfdf today vs --line-2 #e7e7e7 proposed.
Three marks are struck from #939393 at 16% and 55%: the header dot grid, the link underline and the annotation chip. Over paper the two columns below are identical — flattening costs nothing. The bottom row is the same code over a dark plate, which is where a baked value stops being a tint and starts being a light patch.