I use play2 to create a default scala app:
play new test
Then:
play run
Visit http://localhost:9000, I can see:

But when:
play dist
cd dist
unzip test-1.0.0-SNAPSHOT.zip -d .
cd test-1.0.0-SNAPSHOT
./start
The home page will be:

Why they are different?
One is to run the server in development mode (
run) and the other in production mode (dist), that’s why the pages shown are different.