CONVERTERS: readonly [
readonly ["ambientLightColor", "colorConverter"],
readonly ["backgroundBitmap", "massifImageConverter"],
readonly ["clearColor", "colorConverter"],
readonly ["mainLightColor", "colorConverter"],
readonly ["mainLightDirection", "mapVecConverter"],
readonly ["skyColor", "colorConverter"],
readonly ["tiltRange", "mapRangeConverter"],
readonly ["zoomRange", "mapRangeConverter"],
]
properties needing a converter, and which one