Examine source code of k_Batter Up!

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "k_Batter Up!",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(229, 205, 158, 0.35)",
      "toolbar_text": "rgb(41, 39, 38)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(7, 7, 7)",
      "toolbar_field": "rgba(52, 45, 40, 0.58)",
      "toolbar_field_text": "rgb(245, 248, 242)",
      "tab_line": "rgba(0, 6, 0, 0.76)",
      "popup": "rgb(214, 200, 165)",
      "popup_text": "rgba(0, 6, 0, 0.76)",
      "tab_loading": "rgba(0, 6, 0, 0.76)"
    }
  }
}