Working with localization

[Tulleb]

I am currently using HomeWidget.renderFlutterWidget to display a basic Flutter widget.

But when I am trying to use context.lt within my widget to display a translated string, then I have the following error:

No instance of Lt present in the widget tree

And if I'm trying to include my widget declaration within a Localization declaration like this:

final localizedWidget = Localizations(
        delegates: Lt.localizationsDelegates,
        locale: const Locale('en'),
        child: myWidget,
      );

Then I have this error when trying to render my widget:

Exception: Invalid image dimensions.

Is there any documentation somewhere showing the good practices to localise our home widget?