Examine source code of Vivid-Motion

{
  "name": "Vivid-Motion",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Vivid-Motion.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(21, 42, 176, 1)",
      "toolbar": "rgba(21, 42, 176, 0.3)",
      "toolbar_field_text": "rgba(21, 42, 176, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{454d6b9d-ef51-4fe5-89ea-5479d4c498f6}"
    }
  }
}