The Parliament diagram creator is made for use in Wikipedia, supported by Wikimedia Commons and Wikidata.
You can use the tool at http://parliamentdiagram.toolforge.org/parlitest.php
If Above does not works, You may use https://app.flourish.studio/
- Requires the jscolor script, available from jscolor.com.
- Requires python (not sure what minimum version will work).
This tool is licensed GPL v2, see LICENSE.md.