Weird things about Tabs.

Using the example project "TabbedContentPanel" supplied by Architect 3 for simple.

I applied the MountainView theme.

When I built the project for testing, it looked like this:

testing.png

But when I built it for production, the width of the tab seemed strange.

production.png

Obviously they are not the same. So what's wrong?

Weird things about Tabs.