Examine source code of Hacker Theme Neue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Hacker",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-017-7074520d97b5c592d413aed5f115f093.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(3, 38, 0)",
      "toolbar_text": "rgb(0, 255, 0)",
      "frame": "rgb(1, 54, 1)",
      "tab_background_text": "rgb(0, 255, 0)",
      "toolbar_field": "rgb(29, 63, 26)",
      "toolbar_field_text": "rgb(0, 255, 0)",
      "tab_line": "rgb(0, 171, 0)",
      "popup": "rgb(15, 37, 0)",
      "popup_text": "rgb(0, 255, 5)",
      "popup_border": "rgb(0, 88, 0)",
      "tab_selected": "rgb(15, 95, 0)",
      "tab_text": "rgb(0, 255, 7)",
      "toolbar_bottom_separator": "rgb(4, 31, 0)",
      "tab_loading": "rgb(0, 171, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{514c0387-faa6-4144-b867-56ada1d38f15}"
    }
  }
}