MDL-84617 core_calendar: Deprecated SCSS classes

The following SCSS classes have been deprecated (they will be removed
in Moodle 6.0):
- calendar_event_category
- calendar_event_course
- calendar_event_site
- calendar_event_group
- calendar_event_user
- calendar_event_other

Author: sarjona

.upgradenotes/MDL-84617-2025022104193678.yml

@@ -0,0 +1,8 @@
+issueNumber: MDL-84617
+notes:
+  core_calendar:
+    - message: >-
+        Deprecated SCSS classes: calendar_event_category, calendar_event_course,
+        calendar_event_site, calendar_event_group, calendar_event_user,
+        calendar_event_other.
+      type: deprecated

theme/boost/scss/moodle/calendar.scss

@@ -30,48 +30,6 @@ $calendarEventColor: #0d5ca1 !default;
 $calendarCurrentDateColor: $white;
 $calendarCurrentDateBackground: $primary;
 
-// Calendar event background colours defined.
-.calendar_event_category {
-    background-color: $calendarEventCategoryColor;
-    .commands a {
-        color: $calendarEventColor;
-    }
-}
-.calendar_event_course {
-    background-color: $calendarEventCourseColor;
-    .commands a {
-        color: $calendarEventColor;
-    }
-}
-
-.calendar_event_site {
-    background-color: $calendarEventGlobalColor;
-    .commands a {
-        color: $calendarEventColor;
-    }
-}
-
-.calendar_event_group {
-    background-color: $calendarEventGroupColor;
-    .commands a {
-        color: $calendarEventColor;
-    }
-}
-
-.calendar_event_user {
-    background-color: $calendarEventUserColor;
-    .commands a {
-        color: $calendarEventColor;
-    }
-}
-
-.calendar_event_other {
-    background-color: $calendarEventOtherColor;
-    .commands a {
-        color: $calendarEventColor;
-    }
-}
-
 @mixin footer-links {
     span.footer-link:after {
         content: "\2022";
@@ -214,35 +172,6 @@ $calendarCurrentDateBackground: $primary;
                     border-radius: 6px;
                     vertical-align: middle;
                     display: inline-block;
-
-                    &.calendar_event_category {
-                        background-color: $calendarEventCategoryColor;
-                        border: $calendarEventCategoryBorder;
-                    }
-                    &.calendar_event_course {
-                        background-color: $calendarEventCourseColor;
-                        border: $calendarEventCourseBorder;
-                    }
-
-                    &.calendar_event_site {
-                        background-color: $calendarEventGlobalColor;
-                        border: $calendarEventGlobalBorder;
-                    }
-
-                    &.calendar_event_group {
-                        background-color: $calendarEventGroupColor;
-                        border: $calendarEventGroupBorder;
-                    }
-
-                    &.calendar_event_user {
-                        background-color: $calendarEventUserColor;
-                        border: $calendarEventUserBorder;
-                    }
-
-                    &.calendar_event_other {
-                        background-color: $calendarEventOtherColor;
-                        border: $calendarEventOtherBorder;
-                    }
                 }
             }
         }
@@ -293,43 +222,6 @@ $calendarCurrentDateBackground: $primary;
         margin: 10px auto;
     }
 
-    .calendar_event_category,
-    .calendar_event_course,
-    .calendar_event_site,
-    .calendar_event_group,
-    .calendar_event_user {
-        a:has(> .icon) {
-            &:hover {
-                color: darken($calendarEventColor, 15%);
-                text-decoration: $link-decoration;
-            }
-        }
-    }
-
-    .calendar_event_category {
-        border-color: $calendarEventCategoryColor;
-    }
-
-    .calendar_event_course {
-        border-color: $calendarEventCourseColor;
-    }
-
-    .calendar_event_site {
-        border-color: $calendarEventGlobalColor;
-    }
-
-    .calendar_event_group {
-        border-color: $calendarEventGroupColor;
-    }
-
-    .calendar_event_user {
-        border-color: $calendarEventUserColor;
-    }
-
-    .calendar_event_other {
-        border-color: $calendarEventOtherColor;
-    }
-
     .calendartable {
         td,
         li {
@@ -484,36 +376,6 @@ $calendarCurrentDateBackground: $primary;
             margin-bottom: 0.2em;
 
             span {
-                &.calendar_event_category {
-                    i {
-                        color: $calendarEventColor;
-                    }
-                }
-                &.calendar_event_course {
-                    i {
-                        color: $calendarEventColor;
-                    }
-                }
-                &.calendar_event_site {
-                    i {
-                        color: $calendarEventColor;
-                    }
-                }
-                &.calendar_event_group {
-                    i {
-                        color: $calendarEventColor;
-                    }
-                }
-                &.calendar_event_user {
-                    i {
-                        color: $calendarEventColor;
-                    }
-                }
-                &.calendar_event_other {
-                    i {
-                        color: $calendarEventColor;
-                    }
-                }
                 img {
                     padding: 0 0.2em;
                     margin: 0;