Examine source code of Work Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "first",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgba(32, 33, 36, 0.25)",
      "toolbar_text": "rgb(64, 214, 251)",
      "frame": "rgb(32, 33, 36)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(48, 49, 52, 0.95)",
      "toolbar_field_text": "rgba(64, 214, 251, 0.75)",
      "tab_line": "rgba(32, 33, 36, 0.25)",
      "popup": "rgb(40, 41, 45)",
      "popup_text": "rgba(255, 255, 255, 0.75)",
      "ntp_background": "rgb(32, 33, 36)",
      "ntp_text": "rgb(160, 212, 222)",
      "popup_border": "rgb(40, 41, 45)",
      "sidebar_border": "rgb(48, 49, 52)",
      "sidebar": "rgb(48, 49, 52)",
      "tab_selected": "rgb(39, 41, 41)",
      "tab_loading": "rgba(32, 33, 36, 0.25)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{098612c1-4fb3-47c9-86f0-adf3787fe388}"
    }
  }
}