Customize WWE view

Hi all!

We’d like to customize disposition code view at WWE - make the list bigger. By default, it is set to 200 px.
We found the css class needed - it is set at saas-all.css at .jar that is responsible for WWE display.

.wwe .wwe-disposition-tree-container .full-disposition-tree
{
max-height: 200px;
...
}

The question is: is it normal (regarding architecture) to change css style in compiled .jar file? I mean we have to open .jar, to change .css, then to compile it back and replace old .jar at GWS. It seems not the best approach… Have anyone tried this?