Examine source code of One dark scheme

{
  "manifest_version": 2,
  "version": "1.4",
  "name": "One dark scheme",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(45, 51, 63)",
      "toolbar_text": "rgb(236, 241, 249)",
      "frame": "rgb(31, 34, 41)",
      "tab_background_text": "rgb(171, 178, 191)",
      "toolbar_field": "rgb(40, 44, 52)",
      "toolbar_field_text": "rgb(171, 178, 191)",
      "tab_line": "rgba(255, 255, 255, 0)",
      "popup": "rgb(49, 54, 63)",
      "popup_text": "rgb(236, 241, 249)",
      "button_background_active": "rgb(67, 75, 82)",
      "button_background_hover": "rgb(58, 67, 74)",
      "frame_inactive": "rgb(40, 43, 51)",
      "ntp_background": "rgb(40, 44, 52)",
      "ntp_text": "rgb(236, 241, 249)",
      "popup_border": "rgb(75, 82, 99)",
      "popup_highlight_text": "rgb(240, 245, 249)",
      "popup_highlight": "rgb(88, 95, 104)",
      "sidebar_border": "rgb(75, 82, 99)",
      "sidebar_highlight_text": "rgb(236, 241, 249)",
      "sidebar_highlight": "rgba(70, 78, 85, 0.35)",
      "sidebar_text": "rgb(236, 241, 249)",
      "sidebar": "rgb(31, 34, 41)",
      "toolbar_bottom_separator": "rgba(49, 54, 63, 0)",
      "toolbar_field_border_focus": "rgb(61, 68, 78)",
      "toolbar_field_border": "rgb(40, 44, 52)",
      "toolbar_field_focus": "rgb(40, 44, 52)",
      "toolbar_field_highlight_text": "rgb(231, 235, 241)",
      "toolbar_field_highlight": "rgba(97, 175, 239, 0.26)",
      "toolbar_field_separator": "rgb(39, 100, 200)",
      "toolbar_field_text_focus": "rgb(234, 239, 248)",
      "toolbar_top_separator": "rgba(31, 34, 41, 0)",
      "tab_loading": "rgba(255, 255, 255, 0)"
    }
  }
}