Examine source code of Jet Set Radio Theme

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Jet Set Radio",
  "icons": {
    "48": "images/icon48.png",
    "124": "images/icon.jpeg"
  },
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(40, 216, 53)",
      "toolbar_field": "rgb(7, 7, 7)",
      "toolbar_field_text": "rgb(174, 177, 239)",
      "tab_line": "rgb(29, 186, 29)",
      "popup": "rgb(65, 231, 97)",
      "popup_text": "rgb(67, 18, 119)",
      "tab_loading": "rgb(29, 186, 29)",
      "bookmark_text": "rgb(0, 0, 0)",
      "frame": "rgb(0, 73, 14)",
      "tab_background_text": "rgb(255, 255, 255)"
    }
  }
}