Google Material Icons
Used in the Thermostat example.
The sources can be found in qtdoc-everywhere-src-6.6.3/examples/demos/thermostat/content/images/kitchen.svg, qtdoc-everywhere-src-6.6.3/examples/demos/thermostat/content/images/bedroom.svg, qtdoc-everywhere-src-6.6.3/examples/demos/thermostat/content/images/kid_room.svg, qtdoc-everywhere-src-6.6.3/examples/demos/thermostat/content/images/living_room.svg, qtdoc-everywhere-src-6.6.3/examples/demos/thermostat/content/images/home.svg, qtdoc-everywhere-src-6.6.3/examples/demos/thermostat/content/images/arrow.svg, qtdoc-everywhere-src-6.6.3/examples/demos/thermostat/content/images/theme.svg, and qtdoc-everywhere-src-6.6.3/examples/demos/thermostat/imports/ThermostatCustomControls/images/keyboard.svg.