trying to extend vanilla .css file but it's not working

Hi All,

I am trying to extend calendar colors with Open UI 8.1.1.11.9. In the last months I have always appended my .css directly to theme-calendar.css, but it would always be overwritten when installing a new PatchSet. So I decided to go the more elegant way of adding a custom css ressource. However, it just won't work and I don't know why. This is what I did:

- created a file in public\enu\FILES\custom\cust-theme-calendar.css

- modified public\enu\23030\SCRIPTS\siebel\custom\theme.js to add the following lines:

SiebelApp.ThemeManager.addResource(

"GRAY_TAB",

{

    css : {

            "cust_cal" : "files/custom/cust-theme-calendar.css"