rem: aRule.style.border = color + " solid 2px"; 
add: aRule.style.backgroundColor = color; 
context:         ruleUpdaterFunc = function categoryRuleFunc(aRule, aIndex) {            var color = getPrefSafe("calendar.category.color."+aObject, null);            if (color) {                aRule.style.border = color + " solid 2px";            } else {                aSheet.deleteRule(aIndex);            }        };
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9421/7a06fdf42b8652ed1766ce76e0fa2f7f5ae8ce39/calendar-views.js/buggy/calendar/base/content/calendar-views.js