{
  "_comment": "SIGNAL COMPASS — the secondary compass (js/ui/SignalCompass.js). A faint radius ring (radius px around the ship) that appears after a SCAN: every UNDISCOVERED object in the tether region shows a soft 'radio signal' hugging the ring at its bearing angle (no arrows). Full strength for lifetime.fullMs, then a linear fade over lifetime.fadeMs; a signal drops the instant its object is discovered; re-scanning re-emits the whole set with a fresh clock. The ring + signals are drawn in world space centered on the ship (they track the ship), at the shared compass color by default (objects may carry their own — asteroid clusters' light gray). Everything is procedural (no assets). `enabled: false` hides the whole feature.",
  "enabled": true,
  "radius": 128,
  "lifetime": {
    "fullMs": 20000,
    "fadeMs": 5000
  },
  "colors": {
    "signal": "#00e5ff",
    "glow": "#0090ff",
    "ring": "#3d4c74"
  },
  "signal": {
    "_comment": "One radio-signal marker on the ring: a soft arc hugging the radius line (arcHalfDeg = half the arc's angle), a diffuse glow under it, a small core dot at its center, and a few faint concentric arcs just OUTSIDE the ring (the 'radio wave' emanating). pulse = the slow beacon breath (hz = cycles/sec, amp = alpha swing, kept small so it reads as a signal, not a strobe).",
    "arcHalfDeg": 13,
    "coreWidth": 3,
    "coreAlpha": 0.7,
    "glowWidth": 14,
    "glowAlpha": 0.16,
    "dotRadius": 3.2,
    "dotAlpha": 0.95,
    "ripples": {
      "count": 3,
      "spacingPx": 9,
      "width": 1.5,
      "alpha": 0.3,
      "arcHalfDeg": 8
    },
    "pulse": {
      "hz": 1.1,
      "amp": 0.16
    }
  },
  "ring": {
    "_comment": "The secondary-compass radius line itself — a very faint full circle. Its alpha scales with the strongest live signal (so the whole instrument fades out with them).",
    "width": 1,
    "alpha": 0.18,
    "glowWidth": 6,
    "glowAlpha": 0.05
  }
}