MapLibreParticleLab/test/fixtures/expression_equality/heatmap-density.a.json

[
  "interpolate",
  [
    "linear"
  ],
  [
    "heatmap-density"
  ],
  0,
  [
    "rgb",
    0,
    0,
    255
  ],
  1,
  [
    "rgb",
    255,
    0,
    0
  ]
]