Among other things, #30777 added docstrings to configdialog.  Those for create_page_x methods included a list of 'Configuration attributes' (Tk Variables) with an annotation as to what the Var represents.  The list for the font tab already helped when writing tests for the tab.

Although the list is redundant with the code, and creates a slight maintenance problem if names are changed, I want to add more lists.  The information collected together will be helpful even if not 100% perfect.  Beside tests, it will help with configdialog maintenance and refactoring, including extracting more classes from ConfigDialog.

Rename 'Configuration attributes' to 'Tk Variables'.  For each page, add 'Data attributes' (other than the Vars). The annotation can briefly say what it is.  Add 'Methods' (other than the tk var trace methods) related to that one page and if needed, *briefly* what it does (not the whole first line of its docstring).  Add 'Widgets bound to self' and the widget class.  Most widget names are not bound to self; the ones that are should be the ones that need to be referenced elsewhere, whether in other methods or tests.

Expand the single line docstring for create_action_buttons as appropriate.  Date attributes include globals help_common and help_pages.  Methods include the click handlers.  I would like a note on what outside data structure is accessed by the click handlers.

Expand the single line create_widgets docstring to include multi-page information.  'Page interactions' would have things like "Font vars trigger redrawing of highlights sample text."  Such interactions will have to be accounted for if we create page classes.  'Tracer Methods' would include the methods that affect all tracer methods.  'Other methods' should include anything else, unless addition methods groups are defined.

ConfigDialog currently has 71 methods defined by def statements.  (There is 1 nested def in ConfigDialog and 4 other defs at the end of the file for 76 total in the file.) I would like all 64 methods other than __init__ and the 6 create_ methods to be accounted for in 1 of the 6 create_ docstrings.  I expect this issue to have multiple PRs.