Examine source code of Material Violet

{
  "manifest_version": 2,
  "version": "1.2",
  "name": "Material Violet",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgba(255, 255, 255, 0.08)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(30, 0, 28)",
      "tab_background_text": "rgb(180, 180, 180)",
      "toolbar_field": "rgba(0, 0, 0, 0.25)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(248, 112, 140, 0)",
      "popup": "rgb(44, 0, 40)",
      "popup_text": "rgb(255, 255, 255)",
      "icons_attention": "rgb(255, 153, 248)",
      "icons": "rgb(255, 207, 250)",
      "ntp_background": "rgb(37, 0, 34)",
      "ntp_text": "rgba(255, 255, 255, 0.5)",
      "popup_border": "rgba(26, 0, 53, 0)",
      "popup_highlight": "rgba(90, 0, 83, 0)",
      "sidebar_border": "rgba(26, 0, 53, 0)",
      "tab_background_separator": "rgba(26, 0, 53, 0)",
      "toolbar_bottom_separator": "rgba(44, 0, 94, 0)",
      "toolbar_field_border_focus": "rgba(0, 0, 0, 0)",
      "toolbar_field_border": "rgba(44, 0, 94, 0)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgb(75, 0, 69)",
      "toolbar_field_separator": "rgba(255, 255, 255, 0)",
      "toolbar_top_separator": "rgba(255, 255, 255, 0)",
      "toolbar_vertical_separator": "rgba(255, 255, 255, 0)",
      "tab_loading": "rgba(248, 112, 140, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{cf856a1b-6a1c-46bd-9e50-c8ec8aa8d599}"
    }
  }
}