SVG version of icon GeoGebra
https://www.geogebra.org/manual/en/File:GeoGebra.svg (seen at Comments:GeoGebra Institute Logos)
Original work
Markus Hohenwarter
Michael Borcherds
This derivative work, editwarring
Tommyv580
Sarang
GeoGebra
Pyfisch
WubTheCaptain