You assume wrong cause dark themes have been dominating GUIs for over 3 decades now. Pharo was the rare exception of using a white theme. Light themes may be popular but white are definitely not.�� The web is the last fort of bright themes, but the web was and still is eons behind when it comes to matters of UI.��

My first computer was black background with green fonts, black back in 80 and 90s was pretty much the norm. There was no white or bright themes back then. It was not because the monitors had any issues with displaying white.��

It was actually the web that made white a thing. Probably inexperienced web coders (there were no web devs back then ) thought it made sense transitioning from paper. Problem is that paper , reflects light, does not emit it.��

White or dark is a matter of preference. But the matter of preference is also a matter of biology . Not all eyes are same. Some eyes have hard time distinguishing elements in dark environments ��, others have hard time distinguishing elements in bright environments but excel at dark environments. I belong to the second case as such white themes for me are pretty much unacceptable for any content I have to read for a long time.��

My monitor as we speak is set to 1/16th of its brightness which is the minimum setting. During the day that sun goes in my room it goes up to 3/16 maximum. Above that I am forced to simply reduce the light in the room.��

Trying to use Moose especially that was even brighter it was even harder for me to the point I gave up and never used it since then.��

So yes there are many of us who were raised with dark themes, still use dark themes , will continue to use dark themes and criticise any app that does not support them. For me the Dark theme has been the most important improvement of Pharo and I am not exaggerating one tiny bit.��