I want to license my Flutter application under GPLv3. So I put the GPLv3 license text in the root of my project and named the file LICENSE.
I read in the docs for the LicenseRegistry class that
The flutter tool will automatically collect the contents of all the LICENSE files found at the root of each package into a single LICENSE file in the default asset bundle.
But I don't see the GPLv3 listed on LicensePage, so maybe I don't understand something. How do I get the LicensePage displayed by ShowAboutDialog to include the GPLv3 license under which I'd like to release my application?