[Bug]: Trying to create variables from Opacity tokens does not create any variables

[six7]

Describe the bug If you have an opacity token and you try to create a variable out of it, it won't work. If you change type to number it will work.

To Reproduce Steps to reproduce the behavior:

1. Create an opacity token with value 0.5
2. Create a theme group that would lead to a valid collection
3. Click Create variables

Expected behavior Variable is created

{
  "large": {
    "value": "0.5",
    "type": "opacity"
  },
  "largex": {
    "value": "0.5",
    "type": "number"
  },
  "large2": {
    "value": "{largex} / 2",
    "type": "number"
  }
}