with enhancement request WJ-8743 we added code to ensure that maxWidth of MessageBoxes does not exceed the browser.
It will be included in the next Wisej build. We´ll inform you when it´s available.
thank you. We are currently working on the message box responsiveness.
While it could also be adapted with a theme mixin, we are making all the system dialogs
adapt to mobile screens automatically.
We´ll keep you updated.