Instrument ProjectorModeCheckbox, see https://github.com/phetsims/sun/issues/501 and https://github.com/phetsims/blackbody-spectrum/issues/83
Instrument ProjectorModeCheckbox, see https://github.com/phetsims/sun/issues/501 and https://github.com/phetsims/blackbody-spectrum/issues/83

phetsims/joist,phetsims/joist,phetsims/joist