Non-nullable field 'frames' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Non-nullable field 'Name' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Cannot convert null literal to non-nullable reference type.

'EaseInSubMenu.ease' hides inherited member 'TextMenuExt.SubMenu.ease'. Use the new keyword if hiding was intended.

Nullability of type of parameter 'obj' doesn't match overridden member (possibly because of nullability attributes).

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Possible null reference assignment.

The type 'TKey' cannot be used as type parameter 'TKey' in the generic type or method 'SortedDictionary<TKey, TValue>'. Nullability of type argument 'TKey' doesn't match 'notnull' constraint.