Examine source code of Mimikyu-Dark-Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Mimikyu-Dark-Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(31, 34, 61)",
      "toolbar_text": "rgb(239, 226, 255)",
      "frame": "rgb(8, 11, 33)",
      "tab_background_text": "rgb(122, 90, 150)",
      "toolbar_field": "rgb(54, 58, 89)",
      "toolbar_field_text": "rgb(224, 189, 255)",
      "tab_line": "rgb(83, 37, 145)",
      "popup": "rgb(31, 34, 61)",
      "popup_text": "rgb(136, 175, 223)",
      "tab_loading": "rgb(83, 37, 145)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d6b7f9b7-04b4-4461-ab70-608bbb0e9000}"
    }
  }
}