Building Forms with Scene Builder 2 creates very nice forms.
Now there is a problem.
In Windows 7-8 and Classic theme you get the form's you have designed.
If you use an other theme like Windows 7 Basic the form's are getting mis-formed.
Font-size are not the same with as result all node's are bigger then you have designed.
Layouts are changing.
Everywhere I use Java 8 latest version 8.31
On Windows 7 and 8 I have seen this issue.
Change on windows 7 the theme to Windows Classic has solved this.
But some customers go to change this with as result of bad forms.
With all forms I add a Stylesheet what is helping a little.
(SOLVED)
To get this right you can do the follow.
In Scene builder fix all your Controls with Anchor Pane Constraints. Left, Right, Top and Bottom.
Or use USE_PREF_SIZE
Load the Css stylesheet modena.css.