tony1223/zkfiddle-sandbox — comment on commit aaadca9efdc702fb938bdc684e479839ab6f5028
File:  line 0
By tony1223:

Because I used a tricky way to add this class , I have to set the theme for each sandbox. :)

You could take a look in
src/main/java/org/zkoss/fiddler/executor/server/SandboxWebappContext.java

I compile the class in runtime before web context started.