If I open the Help for an application, the size of the font is (for me) quite small. Is there any way to increase the size of the font?
By "Help", I mean the help system/viewer that is presented after pressing ⌘ command? or selecting the help option from the Help menu bar item in many applications. Once the Help system opens a window and text is visible, pressing ⌘ command+ does not have an effect. I could not find any obviously-relevant options in the macOS System Preferences, though I may have missed something.
Update 2020-12-18: I was wrong – I was actually pressing ⌘ command=, not ⌘ command+, and that's why it didn't work. In one of the comments, I explain what led to this.