hi drirsching,
please follow these steps:
1. open templatesja_droidcsstemplate.css, add:
#ja-right1 .module { background: #ECEFF9; border: 1px solid #CBD0E2; padding: 4px; }
#ja-right1 .module div { border: 1px solid #CBD0E2; padding: 0; }
#ja-right1 .module div div { background: #F1F3FB; border: 1px solid #fff; padding: 15px; }
#ja-right1 .module div div div { border: 0; padding: 0; text-align: center; }
2. go to admin > templates manager > ja droid > layouts tab > edit default layout.
find:
<block name="right1">left</block>
and change to:
<block name="right1" style="rounded" main-inner="3">left</block>
click Save, then Clear jat3 cache
3. go to front end, f5 and see what happens.
have fun!:)