When using the pageConfig page layout object and pageColClasses or mainClasses is not set this can lead to extra spacing in the class list on the page container grid cols.
There is also an issue where mainColClasses cannot be set because the param is set to a var mainClasses which is never referenced in the code. mainColClasses is.
Here is the class list with extra spacing:

When using the
pageConfigpage layout object andpageColClassesormainClassesis not set this can lead to extra spacing in the class list on the page container grid cols.There is also an issue where
mainColClassescannot be set because the param is set to a varmainClasseswhich is never referenced in the code.mainColClassesis.Here is the class list with extra spacing:
