Examine source code of Hotline Miami

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Hotline Miami",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(3, 19, 66, 0)",
      "toolbar_text": "rgb(255, 255, 0)",
      "frame": "rgb(0, 179, 255)",
      "tab_background_text": "rgb(1, 48, 186)",
      "toolbar_field": "rgba(233, 250, 37, 0.69)",
      "toolbar_field_text": "rgb(0, 65, 255)",
      "tab_line": "rgb(234, 255, 0)",
      "popup": "rgb(60, 194, 250)",
      "popup_text": "rgb(2, 41, 152)",
      "button_background_active": "rgb(0, 65, 255)",
      "button_background_hover": "rgba(255, 0, 179, 0.9)",
      "icons_attention": "rgba(255, 0, 179, 0.9)",
      "popup_border": "rgb(0, 43, 169)",
      "popup_highlight_text": "rgb(15, 191, 232)",
      "sidebar_border": "rgba(255, 0, 179, 0.9)",
      "sidebar_highlight_text": "rgba(255, 0, 179, 0.9)",
      "sidebar_highlight": "rgba(255, 0, 179, 0.9)",
      "sidebar_text": "rgb(15, 191, 232)",
      "tab_loading": "rgb(234, 255, 0)"
    }
  }
}