I have seen so much GUI code like this in my career! Real world sophisticated GUIs can have tens or hundreds of attributes to setup. Especially ancient Xlib stuff, this was the norm. You have a few functions with maybe hundreds of lines doing pure GUI setup. No problem -- easy to mentally compartmentalise.

Your deeper point (if I may theorise): Stop following hard-and-fast rules. Instead, do what makes sense and is easy to read and maintain.