Some new EXPERT has made their mark and moved controls around or removed them. Now I'm stuck with light theme that BOTHERS MY EFFING EYES!
First they rearrange the forum to WASTE SCREEN SPACE and now this. Dunno how I'll feel but WORSE EVERY TIME about sums it up, there was never any need to change the look from 2012.. whenever they pulled that one.
PS: I had to edit some truth out of this (thanks @sterretje) so I substituted EXPERT for another better fitting word for someone who just jerks us around. Begins with 'a'.
There are lots of people who tell us that "change is good" and we shall take it as a "chance". I tend to ask them why at the same time they don't consider climate change a great development?!?
Unfortunately most of them don't understand that change is not a value by itself.
But if someone feels chosen to give the world a great gift in the form of an incredible improvement, what is there to say against it?
I apologize for the inconvenience. The Discourse team did apply a fix to the custom theme used by Arduino Forum earlier:
I would not expect a minor patch to the existing theme to result in a change to the preferences of users.
The last update to the Discourse forum framework (note the custom theme is a separate component) occurred on 2026-08-01:
The fact that reports are only being made now, a few days later, makes me doubt the problem you encountered was caused by the Discourse framework update.
I usually don't log out from the forum. I did clear cache and cookies a day ago and and had to login again; after that the theme was light instead of dark.
I did not apply the fix to the theme. However, I did coordinate the fix with the Discourse team, and approved the deployment of the fix to Arduino Forum. So I do take responsibility for any problems caused by this work.
I reviewed the specific changes that were made when the fix was applied and discovered that the theme name was changed from the previous awkward "discourse-arduino-theme (reuploaded)" to "Arduino Theme". I suspect this name change is what caused the user theme preferences to revert to the default.
Arduino Forum uses a hosting plan offered by the company behind the open source Discourse forum framework. Maintenance services are provided as part of that hosting plan. So Discourse team members are granted admin privileges as required to perform that maintenance.