Focus inside a row. Steam focuses the switch; its row carries the light (white .28, spot, arc) and the switch is lifted. In the check matrix the row only warms and the focused circle carries the focus.

Sliders. 64 px capsules; the knob (Steam's handle, 64) shows on hover, focus and drag, and turns into clear glass while dragged. The value text is Steam's, or a number formatted for the UI language.