missing_return warning in customRender

[Zerstoren]

I have in project very strong analysis options and analyzer have parametr missing_return: warning

customRender whant to get Widget or null, but analyzer see in this case warning.
I can't set missing_return to ignore, may be the good solution is create widget like Fallback and will be do same as null?

[Sub6Resources]

You can safely return null at the end of the customRender function.