Examine source code of Dark pastel

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "wowow",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-037-b73f9b34467ba541de861f5b4c0c6316.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(40, 40, 40)",
      "toolbar_text": "rgb(137, 255, 0)",
      "frame": "rgb(116, 116, 116)",
      "tab_background_text": "rgb(118, 185, 245)",
      "toolbar_field": "rgb(15, 15, 15)",
      "toolbar_field_text": "rgb(255, 203, 255)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgb(40, 40, 40)",
      "popup_text": "rgb(255, 203, 255)",
      "button_background_active": "rgb(118, 185, 245)",
      "icons_attention": "rgb(255, 96, 0)",
      "popup_border": "rgb(255, 203, 255)",
      "popup_highlight": "rgb(232, 112, 0)",
      "sidebar_border": "rgb(118, 185, 245)",
      "sidebar_text": "rgb(255, 203, 255)",
      "sidebar": "rgb(40, 40, 40)",
      "tab_loading": "rgb(255, 203, 255)",
      "toolbar_field_border_focus": "rgb(255, 203, 255)",
      "toolbar_field_border": "rgb(118, 185, 245)",
      "toolbar_field_focus": "rgba(40, 40, 40, 0)",
      "toolbar_field_separator": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgb(184, 255, 183)"
    }
  }
}