Examine source code of One Piece Strawhat Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "One Piece strawhat theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(255, 184, 87)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 48, 0)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(255, 0, 0)",
      "tab_line": "rgb(248, 112, 140)",
      "popup": "rgb(255, 184, 87)",
      "popup_text": "rgb(255, 28, 28)",
      "button_background_hover": "rgb(255, 255, 255)",
      "icons_attention": "rgb(255, 255, 255)",
      "icons": "rgb(255, 0, 0)",
      "popup_border": "rgb(255, 255, 255)",
      "sidebar": "rgb(255, 255, 255)",
      "tab_background_separator": "rgb(255, 255, 255)",
      "tab_selected": "rgb(255, 0, 0)",
      "tab_loading": "rgb(248, 112, 140)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{be3de07f-f617-4c5f-aedd-c13a73ccf6e2}"
    }
  }
}