Examine source code of Twilight Plasma

{
  "manifest_version": 2,
  "version": "0.2.1Ff",
  "name": "Plasmoid",
  "browser_specific_settings": {
    "gecko": {
      "id": "{86ef168c-e4a3-46cd-a9b0-8b26cccaaf15}",
      "strict_min_version": "67.0"
    }
  },
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/1.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center top"
      ],
      "additional_backgrounds_tiling": []
    },
    "colors": {
      "sidebar_text": "rgb(115, 202, 255)",
      "sidebar_highlight_text": "rgb(115, 202, 255)",
      "sidebar_highlight": "rgb(128, 0, 255)",
      "sidebar": "rgb(30, 28, 50)",
      "sidebar_border": "rgb(60, 60, 100)",
      "toolbar": "rgb(30, 28, 50)",
      "toolbar_text": "rgb(115, 202, 255)",
      "frame": "rgba(0, 186, 255, 0)",
      "tab_background_text": "rgb(117, 155, 196)",
      "toolbar_field": "rgb(11, 10, 22)",
      "toolbar_field_text": "rgba(62, 166, 255, 0.76)",
      "tab_line": "rgb(122, 0, 255)",
      "popup": "rgba(15, 15, 28, 0.75)",
      "popup_text": "rgb(115, 202, 255)",
      "button_background_active": "rgb(83, 0, 255)",
      "button_background_hover": "rgba(0, 202, 255, 0.29)",
      "frame_inactive": "rgba(83, 0, 255, 0)",
      "icons_attention": "rgb(62, 166, 255)",
      "icons": "rgba(62, 166, 255, 0.9)",
      "ntp_background": "rgb(30, 28, 50)",
      "ntp_text": "rgb(115, 202, 255)",
      "popup_border": "rgb(0, 186, 255)",
      "popup_highlight_text": "rgb(115, 202, 255)",
      "popup_highlight": "rgb(128, 0, 255)",
      "newtab-background-color": "rgb(23, 255, 59)",
      "newtab-background-color-secondary": "rgb(23, 255, 59)",
      "tab_background_separator": "rgb(201, 197, 242)",
      "tab_selected": "rgba(20, 110, 160, 0.66)",
      "tab_text": "rgb(115, 202, 255)",
      "toolbar_bottom_separator": "rgb(30, 28, 50)",
      "toolbar_field_border_focus": "rgb(65, 33, 213)",
      "toolbar_field_border": "rgba(73, 32, 224, 0.5)",
      "toolbar_field_focus": "rgba(30, 28, 50, 0.7)",
      "toolbar_field_highlight_text": "rgb(62, 166, 255)",
      "toolbar_field_highlight": "rgb(80, 8, 255)",
      "toolbar_field_separator": "rgba(0, 164, 212, 0.29)",
      "toolbar_field_text_focus": "rgb(63, 130, 150)",
      "toolbar_top_separator": "rgba(122, 0, 255,0.2)",
      "toolbar_vertical_separator": "rgb(70, 70, 208)",
      "tab_loading": "rgb(122, 0, 255)"
    }
  }
}