Change schedule to have more theme-y colours

css/_variables.scss

@@ -46,7 +46,7 @@ $highlight-3-border:            $brand-2024-mid-green;
 $highlight-3-background-hover:  $desaturated-yellow;
 
 $schedule-text:                 #d5d6da;
-$schedule-block:                #123F8B;
+$schedule-block:                $brand-2024-mid-green;
 
 $form-element:                  color.adjust($brand-2024-yellow, $lightness: +45%);
 
@@ -57,4 +57,4 @@ $alert-info-border:             $brand-2024-blue;
 
 $alert-warning-background:      color.adjust($brand-2024-orange, $lightness: +20%);
 $alert-warning-border:          $brand-2024-orange;
-$alert-warning-text:            #1e1e1e;
+$alert-warning-text:            #1e1e1e;

css/schedule.scss

@@ -1,7 +1,7 @@
 @use "./_variables.scss" as *;
 
 .filters {
-  background-color: #90CCD6;
+  background-color: $brand-2024-pale-green;
   margin-top: 1em;
 
   h3 {
@@ -13,12 +13,12 @@
   .panel-title {
     display: flex;
     justify-content: space-between;
-    background-color: #90CCD6;
+    background-color: $brand-2024-pale-green;
     border: none;
   }
 
   .panel-heading {
-    background-color: #90CCD6;
+    background-color: $brand-2024-pale-green;
     border: none;
   }
 }
@@ -74,7 +74,7 @@
   margin-bottom: 1em;
 
   &.cfp {
-    border: 2px solid #E4147E;
+    border: 2px solid $brand-2024-pale-green;
   }
 
   .event-synopsis {
@@ -112,7 +112,7 @@
     }
 
     .speaker {
-      color: #E4147E;
+      color: $brand-2024-yellow;
       font-weight: bold;
     }
   }
@@ -131,14 +131,14 @@
   }
 
   .btn-warning {
-    background-color: #F2DE1B;
+    background-color: $brand-2024-yellow;
     color: #151735;
     font-weight: bold;
     border: none;
   }
 
   .btn-warning:active {
-    background-color: #F2DE1B;
+    background-color: $brand-2024-yellow;
     color: #151735;
     font-weight: bold;
     border: none;