Examine source code of Dark Gray_Red_White

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark Gray_Red_White",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(17, 17, 17)",
      "toolbar_text": "rgb(251, 251, 254)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(128, 128, 128)",
      "toolbar_field": "rgb(22, 22, 22)",
      "toolbar_field_text": "rgb(251, 251, 254)",
      "tab_line": "rgb(204, 0, 0)",
      "popup": "rgb(17, 17, 17)",
      "popup_text": "rgb(128, 128, 128)",
      "button_background_active": "rgb(80, 80, 80)",
      "button_background_hover": "rgb(204, 0, 0)",
      "icons_attention": "rgb(255, 69, 0)",
      "icons": "rgb(251, 251, 254)",
      "ntp_background": "rgb(22, 22, 22)",
      "ntp_text": "rgb(251, 251, 254)",
      "popup_border": "rgb(80, 80, 80)",
      "tab_selected": "rgb(22, 22, 22)",
      "tab_text": "rgb(251, 251, 254)",
      "toolbar_bottom_separator": "rgb(17, 17, 17)",
      "toolbar_field_border_focus": "rgb(22, 22, 22)",
      "toolbar_field_border": "rgb(0, 0, 0)",
      "toolbar_field_focus": "rgb(0, 0, 0)",
      "toolbar_field_highlight_text": "rgb(251, 251, 254)",
      "toolbar_field_highlight": "rgb(204, 0, 0)",
      "toolbar_field_text_focus": "rgb(251, 251, 254)",
      "toolbar_top_separator": "rgb(17, 17, 17)",
      "tab_loading": "rgb(204, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4ec0e773-2ccd-4b3b-a108-835c26e4bf61}"
    }
  }
}