If the warning disappears with 1.1 import then we're in trouble. It should be displayed with 1.1 as well. It should be displayed till Theme is used instead of theme. So if 1.3 import uses Theme, it will show a warning.
If the warning disappears with 1.1 import then we're in trouble. It should be displayed with 1.1 as well. It should be displayed till Theme is used instead of theme. So if 1.3 import uses Theme, it will show a warning.