Examine source code of Komainu Blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Komainu",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png",
        "images/1.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top",
        "left top"
      ],
      "additional_backgrounds_tiling": [
        "repeat-y",
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(113, 202, 244)",
      "toolbar_text": "rgb(246, 238, 215)",
      "frame": "rgb(41, 132, 185)",
      "tab_background_text": "rgb(17, 17, 17)",
      "toolbar_field": "rgb(202, 212, 90)",
      "toolbar_field_text": "rgb(17, 17, 17)",
      "tab_line": "rgb(59, 85, 37)",
      "popup": "rgb(250, 241, 224)",
      "popup_text": "rgb(205, 84, 67)",
      "icons_attention": "rgb(43, 125, 175)",
      "icons": "rgb(246, 244, 219)",
      "tab_selected": "rgb(85, 126, 56)",
      "tab_text": "rgb(246, 244, 219)",
      "tab_loading": "rgb(59, 85, 37)"
    }
  }
}