Vision

For items that can accept vision modifications (like helmets and ballistic masks) but don't have a rating, treat as Rating 2 instead.

For Imaging Scopes and natural senses not granted via awakening, treat as if Rating 6.

Apply Vision

/* For most technological sources. */
let rating = item.system.technology.rating;
/* For adept and critter powers. */
let rating = actor.system.attributes.magic.value;
/* You can also set a static value, for natural senses or special cases. */
let rating = 6;

Combine one of the above with one of the below. Change the angle to 30 for handheld items (scopes, cameras, etc).

Thermographic Vision

token.document.update({
  sight: {
    color: "#CC6600",
    range: (rating / 2 + 1) ** 2, 
    angle: 360
  }
});

Low-Light Vision

token.document.update({
  sight: {
    color: "#002244",
    range: (rating / 2 + 2) ** 2, 
    angle: 360
  }
});

Remove Vision

Use this to remove the vision adjustments.

token.document.update({
  sight: {
    color: null,
    range: 0,
    angle: 360
  }
});