Examine source code of dark+lightred when inactive

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "dark light lightred inactive",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(21, 11, 51)",
      "tab_background_text": "rgb(0, 255, 198)",
      "toolbar_field": "rgb(0, 0, 25)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(247, 0, 40)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(164, 48, 50)",
      "button_background_hover": "rgb(226, 32, 35)",
      "frame_inactive": "rgba(79, 6, 8, 0.98)",
      "icons_attention": "rgb(69, 204, 177)",
      "icons": "rgb(0, 255, 172)",
      "ntp_background": "rgb(0, 0, 0)",
      "popup_border": "rgba(255, 0, 17, 0.66)",
      "popup_highlight_text": "rgb(0, 0, 0)",
      "popup_highlight": "rgb(176, 176, 176)",
      "sidebar_border": "rgb(186, 0, 255)",
      "sidebar_highlight_text": "rgb(200, 76, 42)",
      "sidebar_highlight": "rgb(21, 56, 206)",
      "sidebar": "rgb(191, 227, 229)",
      "tab_loading": "rgb(187, 0, 255)",
      "toolbar_bottom_separator": "rgb(255, 0, 5)",
      "toolbar_field_border_focus": "rgba(255, 0, 5, 0.98)",
      "toolbar_field_border": "rgb(11, 232, 255)",
      "toolbar_field_focus": "rgba(4, 36, 36, 0.57)",
      "toolbar_field_highlight": "rgb(242, 52, 0)",
      "toolbar_field_separator": "rgb(255, 11, 11)",
      "toolbar_top_separator": "rgb(205, 44, 35)",
      "toolbar_vertical_separator": "rgb(255, 0, 5)"
    }
  }
}