Examine source code of rainbow_galaxy

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "rainbow galaxy",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(255, 0, 0, 0.41)",
      "toolbar_text": "rgba(248, 112, 237, 0.31)",
      "frame": "rgb(59, 3, 102)",
      "tab_background_text": "rgb(255, 248, 0)",
      "toolbar_field": "rgba(255, 255, 255, 0.34)",
      "toolbar_field_text": "rgba(123, 127, 204, 0.27)",
      "tab_line": "rgb(255, 103, 0)",
      "popup": "rgba(0, 21, 249, 0.88)",
      "popup_text": "rgba(67, 255, 225, 0.8)",
      "ntp_background": "rgb(0, 0, 0)",
      "tab_loading": "rgb(255, 103, 0)"
    }
  }
}