Examine source code of Weirdcore meat theme v2

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Weirdcore meat theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(145, 5, 5)",
      "toolbar_text": "rgb(255, 150, 172)",
      "frame": "rgb(145, 5, 5)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(183, 20, 20)",
      "toolbar_field_text": "rgb(255, 150, 172)",
      "tab_line": "rgb(255, 150, 172)",
      "popup": "rgb(145, 5, 5)",
      "popup_text": "rgb(255, 150, 172)",
      "tab_loading": "rgb(255, 150, 172)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{10b619c9-84ba-4ecc-97d5-f52cb4aa6309}"
    }
  }
}