Gold Foil raises the word in warm metallic leaf with a shimmer that travels across the surface rather than sitting on it — the look of stamped foil on a heavy card, not yellow text.
The metal is a multi-stop gradient whose highlight positions move, which is what separates foil from flat yellow — real metal changes as the light does. gold-rise lifts the word in, and an feDropShadow grounds it against the background so it reads as raised rather than painted.
Yes — the colour control shifts the whole gradient ramp together, so the highlight and shadow stay metallically consistent instead of just tinting.