Sorry. found
1. UniServerModule.CustomCSS: .
_x-item-disabled .x-form-item-label, .x-item-disabled .x-form-trigger, .x-item-disabled .x-form-field, .x-panel, .x-item-disabled
{
filter: alpha(opacity=100);
opacity: 1;
color: blue;
background: white;
}
._x-item-disabled .x-mask {
background: white;
opacity: 0.0;
}
2. UniDBEdit->ClientEvents->UniEvents-> beforeInit fn:
function beforeInit(sender, config)
{
config.disabledCls = "_x-item-disabled";
}