diff --git a/resources/assets/stylesheets/mixins/colors.scss b/resources/assets/stylesheets/mixins/colors.scss
index d0f54bb3223d97d23ce5f7424075fe7669d9d030..7471e33c8b6907cbec9bfa1fbccf170e1a00454f 100644
--- a/resources/assets/stylesheets/mixins/colors.scss
+++ b/resources/assets/stylesheets/mixins/colors.scss
@@ -265,6 +265,7 @@ $color--tile-border-focus: $color--gray-4;
 $color--tile-border-hover: $color--gray-4;
 $color--tile-border: $color--gray-5;
 $color--tile-background: $color--gray-7;
+$color--tile-background-active: $color--gray-6;
 $color--tile-background-focus: $color--gray-6;
 $color--tile-background-hover: $color--gray-6;
 $color--tile-marker-inactive: $color--gray-4;
@@ -291,6 +292,10 @@ $color--button-hover: $color--blue-1;
 $color--button-inactive-background: $color--gray-7;
 $color--button-inactive-border: $color--gray-5;
 
+$color--radiobuttonset-background: $color--white;
+$color--radiobuttonset-background-selected: $color--gray-6;
+$color--radiobuttonset-border: $color--gray-6;
+
 $color--input-field-border: $color--gray-5;
 $color--input-field-background: $color--white;
 
@@ -308,3 +313,5 @@ $color--good: $color--green-1;
 $color--good-alternative: mix($color--good, $color--white, 20%);
 $color--info: $color--blue-2;
 $color--info-alternative: mix($color--info, $color--white, 20%);
+
+$color-image-placeholder-background: $color--gray-6;
diff --git a/resources/assets/stylesheets/scss/courseware/blockadder.scss b/resources/assets/stylesheets/scss/courseware/blockadder.scss
index a2d5bba983500757cd522218d9aa5c40a388ec27..f393641ac3accfd1b1359c28b62808db43222cdf 100644
--- a/resources/assets/stylesheets/scss/courseware/blockadder.scss
+++ b/resources/assets/stylesheets/scss/courseware/blockadder.scss
@@ -8,7 +8,7 @@
     .cw-blockadder-item-wrapper {
         display: flex;
         position: relative;
-        border: solid thin var(--content-color-40);
+        border: solid thin var(--color--tile-border);
         background-color: var(--white);
         max-width: 268px;
 
@@ -68,7 +68,7 @@
 
 .cw-containeradder-item-wrapper {
     position: relative;
-    border: solid thin var(--content-color-40);
+    border: solid thin var(--color--tile-border);
     margin-bottom: 4px;
     .cw-sortable-handle {
         opacity: 0;
@@ -117,7 +117,7 @@
     margin-bottom: 8px;
 
     label {
-        border: solid thin var(--content-color-40);
+        border: solid thin var(--color--tile-border);
         padding: calc(0.5em + 32px) 1em 0.5em 1em;
         color: var(--base-color);
         text-align: center;
@@ -170,7 +170,7 @@
     .cw-clipboard-item-wrapper {
         background-color: var(--white);
         display: flex;
-        border: solid thin var(--content-color-40);
+        border: solid thin var(--color--tile-border);
         max-width: 248px;
         position: relative;
 
diff --git a/resources/assets/stylesheets/scss/courseware/blocks/default-block.scss b/resources/assets/stylesheets/scss/courseware/blocks/default-block.scss
index 2a0e6d36794d641ee79ea31cc5206b95ea0e253d..e5a99996b26f547d16b673e99bdb76d92ea11d72 100644
--- a/resources/assets/stylesheets/scss/courseware/blocks/default-block.scss
+++ b/resources/assets/stylesheets/scss/courseware/blocks/default-block.scss
@@ -11,7 +11,7 @@
 }
 
 .cw-block-header {
-    background-color: var(--content-color-20);
+    background-color: var(--color--content-box-header);
     padding: 4px 10px 4px 22px;
 
     .cw-block-header-toggle {
@@ -49,7 +49,7 @@
 .cw-discuss-wrapper,
 .cw-block-features {
     header{
-        background-color: var(--content-color-20);
+        background-color: var(--color--content-box-header);
         color: var(--base-color);
         font-weight: 600;
         padding: 0.5em;
@@ -83,7 +83,7 @@
     }
 }
 .cw-content-wrapper-active {
-    border: solid thin var(--content-color-40);
+    border: solid thin var(--color--content-box-border);
     .cw-block-content {
         padding: $cw-wrapper-gap;
     }
@@ -91,17 +91,17 @@
 
 .cw-block-title {
     padding: 4px;
-    background-color: var(--content-color-20);
+    background-color: var(--color--content-box-header);
     color: var(--base-color);
     font-weight: 700;
     text-align: center;
-    border: solid thin var(--content-color-40);
+    border: solid thin var(--color--content-box-border);
     border-bottom: none;
 }
 
 .cw-file-empty {
     @include background-icon(file, info, 96px);
-    border: solid thin var(--content-color-40);
+    border: solid thin var(--color--content-box-border);
     background-position: center 1em;
     background-repeat: no-repeat;
     min-height: 140px;
diff --git a/resources/assets/stylesheets/scss/courseware/containers/default-container.scss b/resources/assets/stylesheets/scss/courseware/containers/default-container.scss
index 5f73f4c757b7e383e3324b8a8cef7862b4100111..8821935d0ed6b96eedac97e2c669545689fbcece 100644
--- a/resources/assets/stylesheets/scss/courseware/containers/default-container.scss
+++ b/resources/assets/stylesheets/scss/courseware/containers/default-container.scss
@@ -18,7 +18,7 @@
     }
 
     .cw-container-header {
-        background-color: var(--content-color-20);
+        background-color: var(--color--content-box-header);
         padding: 4px 10px 4px 22px;
 
         .cw-container-header-toggle {
@@ -64,7 +64,7 @@
             }
         }
         .cw-container-content {
-            border: solid thin var(--content-color-40);
+            border: solid thin var(--color--content-box-border);
         }
     }
 
@@ -102,5 +102,6 @@ form.cw-container-dialog-edit-form {
 
     fieldset {
         max-width: 200px;
+        padding-top: 10px;
     }
 }
diff --git a/resources/assets/stylesheets/scss/courseware/containers/tabs.scss b/resources/assets/stylesheets/scss/courseware/containers/tabs.scss
index 0485266d88cfadbdb5df3b41ce5e1694550506d5..5ff8789256d5706a14c37af912689fcb5c84bb9a 100644
--- a/resources/assets/stylesheets/scss/courseware/containers/tabs.scss
+++ b/resources/assets/stylesheets/scss/courseware/containers/tabs.scss
@@ -18,7 +18,7 @@
         }
 
         .cw-tabs-content {
-            padding: 8px 0 0 0;
+            padding: 8px;
 
             .cw-companion-box {
                 border: none;
diff --git a/resources/assets/stylesheets/scss/courseware/layouts/collapsible.scss b/resources/assets/stylesheets/scss/courseware/layouts/collapsible.scss
index 39b6514dc04ea7252ba9058fd133296069ff5daf..e1acb44731fd74764e0470ba1dbb54875faecca9 100644
--- a/resources/assets/stylesheets/scss/courseware/layouts/collapsible.scss
+++ b/resources/assets/stylesheets/scss/courseware/layouts/collapsible.scss
@@ -1,14 +1,14 @@
 @use '../../../mixins.scss' as *;
 
 .cw-collapsible {
-    border: solid thin var(--content-color-40);
+    border: solid thin var(--color--content-box-border);
     margin-bottom: -1px;
 
     .cw-collapsible-title {
         @include background-icon(arr_1right);
         background-position: 6px center;
         background-repeat: no-repeat;
-        background-color: var(--content-color-20);
+        background-color: var(--color--content-box-header);
         padding: 0.5em 2em;
         margin: 0;
         font-weight: 600;
diff --git a/resources/assets/stylesheets/scss/courseware/layouts/radioset.scss b/resources/assets/stylesheets/scss/courseware/layouts/radioset.scss
index 0be379b606f1015d1da0b86bc9ddf1b11ed4ccad..9569da428fd58a26595cc0bdf550e49d9579ae8f 100644
--- a/resources/assets/stylesheets/scss/courseware/layouts/radioset.scss
+++ b/resources/assets/stylesheets/scss/courseware/layouts/radioset.scss
@@ -10,7 +10,7 @@ $radio-icons: (
     groups: group2
 );
 
-.cw-radioset {
+form.default .cw-radioset {
     display: flex;
     flex-direction: row;
     justify-content: center;
@@ -21,7 +21,7 @@ $radio-icons: (
         height: 128px;
         text-align: center;
         margin-right: 8px;
-        border: solid thin var(--content-color-40);
+        border: solid thin var(--color--tile-border);
         label {
             height: 100%;
             width: 100%;
@@ -69,7 +69,7 @@ $radio-icons: (
 
         &.selected {
             border-color: var(--base-color);
-            background-color: var(--content-color-20);
+            background-color: var(--color--tile-background-active);
             label {
                 @include background-icon(check-circle);
                 .label-icon {
diff --git a/resources/assets/stylesheets/scss/courseware/layouts/ribbon.scss b/resources/assets/stylesheets/scss/courseware/layouts/ribbon.scss
index 6d30b4edbd51584bcf097db91f99e63ce06d30f5..3d22c9e2fb0f8cdfcad2316a798bbe7bfdb2687e 100644
--- a/resources/assets/stylesheets/scss/courseware/layouts/ribbon.scss
+++ b/resources/assets/stylesheets/scss/courseware/layouts/ribbon.scss
@@ -290,7 +290,7 @@ $consum_ribbon_width: calc(100% - 58px);
                         max-width: unset;
                         flex-grow: 0.5;
                         &::after {
-                            margin-top: 20px;
+                            margin-top: 16px;
                         }
                     }
                 }
diff --git a/resources/assets/stylesheets/scss/courseware/layouts/tabs.scss b/resources/assets/stylesheets/scss/courseware/layouts/tabs.scss
index 0f653eb3dc8e6b79c18247864f0b4ecfc97952c0..2db91ce1e2d7da4b4f95a884319249f22e208c7f 100644
--- a/resources/assets/stylesheets/scss/courseware/layouts/tabs.scss
+++ b/resources/assets/stylesheets/scss/courseware/layouts/tabs.scss
@@ -7,7 +7,7 @@
     list-style: none;
     padding: 0;
     margin: 0;
-    border: solid thin var(--content-color-40);
+    border: solid thin var(--color--content-box-border);
     border-bottom: none;
 
     button {
@@ -23,8 +23,8 @@
 
         &::after {
             display: block;
-            margin-top: 4px;
-            margin-bottom: -12px;
+            margin-top: 8px;
+            margin-bottom: -4px;
             margin-left: -14px;
             width: calc(100% + 28px);
             content: '';
@@ -96,7 +96,7 @@
 }
 
 .cw-tabs-content {
-    border: solid thin var(--content-color-40);
+    border: solid thin var(--color--content-box-border);
     padding: 4px;
 }
 
diff --git a/resources/assets/stylesheets/scss/courseware/layouts/tree.scss b/resources/assets/stylesheets/scss/courseware/layouts/tree.scss
index 1ff0312afeb0f8ea226e8d48f89b83e2f1b05916..4708e3a9a3222b0ee6f73953b8981b53053b58f1 100644
--- a/resources/assets/stylesheets/scss/courseware/layouts/tree.scss
+++ b/resources/assets/stylesheets/scss/courseware/layouts/tree.scss
@@ -28,6 +28,7 @@
 
                             > .cw-sortable-handle {
                                 margin-bottom: 2px;
+                                margin-right: -4px;
                             }
 
                             > a.cw-tree-item-link {
diff --git a/resources/assets/stylesheets/scss/courseware/structural-element.scss b/resources/assets/stylesheets/scss/courseware/structural-element.scss
index 565f0da3a536affac08844cedac8a01210c3076f..b17bb99f3493ec1933c7ad86ea804c38ab3b50c3 100644
--- a/resources/assets/stylesheets/scss/courseware/structural-element.scss
+++ b/resources/assets/stylesheets/scss/courseware/structural-element.scss
@@ -164,7 +164,7 @@
     width: 300px;
     height: 200px;
     margin: 0 auto;
-    background-color: var(--content-color-20);
+    background-color: var(--color-image-placeholder-background);
     background-size: 100% auto;
     background-repeat: no-repeat;
     background-position: center;
diff --git a/resources/assets/stylesheets/scss/courseware/toolbar.scss b/resources/assets/stylesheets/scss/courseware/toolbar.scss
index a0f04e50e15c77935b220d7e68b754b25dab6702..23bb42a3c9791eac2543490141aa3535eb0d642e 100644
--- a/resources/assets/stylesheets/scss/courseware/toolbar.scss
+++ b/resources/assets/stylesheets/scss/courseware/toolbar.scss
@@ -149,7 +149,7 @@
         }
 
         &.active {
-            border-bottom: solid 2px var(--base-color);
+            border-bottom: solid 3px var(--dark-gray-color-75);
         }
     }
     .cw-toolbar-spacer-right {
diff --git a/resources/assets/stylesheets/scss/variables.scss b/resources/assets/stylesheets/scss/variables.scss
index d1564fef5e953814e83c65ad298da271f9d421df..d0a174f17b2ccd2db9a4a8297645a9efb08128bf 100644
--- a/resources/assets/stylesheets/scss/variables.scss
+++ b/resources/assets/stylesheets/scss/variables.scss
@@ -246,6 +246,7 @@ $grid-gap: 0;
     --color--tile-border-hover: #{$color--tile-border-hover};
     --color--tile-border: #{$color--tile-border};
     --color--tile-background: #{$color--tile-background};
+    --color--tile-background-active: #{$color--tile-background-active};
     --color--tile-background-focus: #{$color--tile-background-focus};
     --color--tile-background-hover: #{$color--tile-background-hover};
     --color--tile-marker-inactive: #{$color--tile-marker-inactive};
@@ -272,6 +273,10 @@ $grid-gap: 0;
     --color--button-inactive-background: #{$color--button-inactive-background};
     --color--button-inactive-border: #{$color--button-inactive-border};
 
+    --color--radiobuttonset-background: #{$color--radiobuttonset-background};
+    --color--radiobuttonset-background-selected: #{$color--radiobuttonset-background-selected};
+    --color--radiobuttonset-border: #{$color--radiobuttonset-border};
+
     --color--input-field-border: #{$color--input-field-border};
     --color--input-field-background: #{$color--input-field-background};
 
@@ -290,6 +295,8 @@ $grid-gap: 0;
     --color--info: #{$color--info};
     --color--info-alternative: #{$color--info-alternative};
 
+    --color-image-placeholder-background: #{$color-image-placeholder-background};
+
     @media (prefers-reduced-motion) {
         #{"--"}transition-duration: 0s;
         #{"--"}transition-duration-slow: 0s;
diff --git a/resources/assets/stylesheets/scss/wizard.scss b/resources/assets/stylesheets/scss/wizard.scss
index 6fc54b331efdbcb881ed59740ec1f2a9d77adbcf..6c5f81e8141b22986f03a584936b68dcd028a448 100644
--- a/resources/assets/stylesheets/scss/wizard.scss
+++ b/resources/assets/stylesheets/scss/wizard.scss
@@ -174,7 +174,8 @@ form.default fieldset.radiobutton-set {
 
     >label {
         cursor: pointer;
-        border: 1px solid var(--content-color-40);
+        border: 1px solid var(--color--radiobuttonset-border);
+        background-color: var(--color--radiobuttonset-background);
         transition: background-color 200ms;
         display: flex;
         justify-content: space-between;
@@ -202,7 +203,7 @@ form.default fieldset.radiobutton-set {
     }
 
     >label:first-of-type {
-        border-top: 1px solid var(--content-color-40);
+        border-top: 1px solid var(--color--radiobuttonset-border);
     }
 
     >label:last-child::after {
@@ -210,7 +211,7 @@ form.default fieldset.radiobutton-set {
     }
 
     >div {
-        border: 1px solid var(--content-color-40);
+        border: 1px solid var(--color--radiobuttonset-border);
         border-top: none;
         display: none;
         padding: 10px;
@@ -218,7 +219,7 @@ form.default fieldset.radiobutton-set {
     }
 
     >input[type=radio]:checked+label {
-        background-color: var(--content-color-20);
+        background-color: var(--color--radiobuttonset-background-selected);
         transition: background-color 200ms;
 
         >.unchecked {
diff --git a/resources/vue/components/courseware/tasks/CoursewareDashboardStudents.vue b/resources/vue/components/courseware/tasks/CoursewareDashboardStudents.vue
index 2b86c713769c9b1c084626080bd7e03fd66da085..889b64d3f4f767eba4e7af19d24c4331b3520249 100644
--- a/resources/vue/components/courseware/tasks/CoursewareDashboardStudents.vue
+++ b/resources/vue/components/courseware/tasks/CoursewareDashboardStudents.vue
@@ -7,9 +7,11 @@
                 </router-link>
             </template>
             <template #breadcrumb-list>
-                <li>
-                    {{ $gettext('Aufgaben') }}
-                </li>
+                <ul>
+                    <li>
+                        {{ $gettext('Aufgaben') }}
+                    </li>
+                </ul>
             </template>
         </ContentBar>
         <table class="default" v-if="taskGroups.length">
diff --git a/resources/vue/components/courseware/tasks/PagesTaskGroupsShow.vue b/resources/vue/components/courseware/tasks/PagesTaskGroupsShow.vue
index b0530c45da39361c713f037d02683644f09dc61f..cacd3abf10b334172ec3ce21339c56ea39036e6b 100644
--- a/resources/vue/components/courseware/tasks/PagesTaskGroupsShow.vue
+++ b/resources/vue/components/courseware/tasks/PagesTaskGroupsShow.vue
@@ -12,13 +12,22 @@
                     </router-link>
                 </template>
                 <template #breadcrumb-list>
-                    <li>
-                        <router-link :to="{ name: 'task-groups-index' }">
-                            {{ $gettext('Aufgaben') }}
-                        </router-link>
-                    </li>
-                    <li>{{ taskGroup.attributes['title'] }}</li>
+                    <ul>
+                        <li>
+                            <router-link :to="{ name: 'task-groups-index' }">
+                                {{ $gettext('Aufgaben') }}
+                            </router-link>
+                        </li>
+                        <li>{{ taskGroup.attributes['title'] }}</li>
+                    </ul>
                 </template>
+                <template #info-text>
+                    <span>{{ statusMessage }}</span>
+                <span>
+                    {{ $gettext('Bearbeitungszeit') }}
+                    <StudipDate :date="startDate" /> - <StudipDate :date="endDate" />
+                </span>
+            </template>
             </ContentBar>
 
             <TaskGroup
@@ -76,6 +85,8 @@ import TaskGroupsAddSolversDialog from './TaskGroupsAddSolversDialog.vue';
 import TaskGroupsDeleteDialog from './TaskGroupsDeleteDialog.vue';
 import TaskGroupsModifyDeadlineDialog from './TaskGroupsModifyDeadlineDialog.vue';
 import ContentBar from "../../ContentBar.vue";
+import StudipDate from '../../StudipDate.vue';
+import { getStatus } from './task-groups-helper.js';
 
 export default {
     components: {
@@ -86,6 +97,7 @@ export default {
         CoursewareTasksDialogDistribute,
         EditFeedbackDialog,
         RenewalDialog,
+        StudipDate,
         TaskGroup,
         TaskGroupsAddSolversDialog,
         TaskGroupsDeleteDialog,
@@ -126,6 +138,18 @@ export default {
                 return memo;
             }, {});
         },
+        status() {
+            return getStatus(this.taskGroup);
+        },
+        statusMessage() {
+            return this.status.description;
+        },
+        startDate() {
+            return new Date(this.taskGroup.attributes['start-date']);
+        },
+        endDate() {
+            return new Date(this.taskGroup.attributes['end-date']);
+        },
     },
     methods: {
         ...mapActions({
diff --git a/resources/vue/components/courseware/tasks/TaskGroup.vue b/resources/vue/components/courseware/tasks/TaskGroup.vue
index 62449f1c03533044faf0dea0f94c1424f4323d4a..541ce7b780ece045a81915efc053bd87d893e158 100644
--- a/resources/vue/components/courseware/tasks/TaskGroup.vue
+++ b/resources/vue/components/courseware/tasks/TaskGroup.vue
@@ -1,14 +1,5 @@
 <template>
     <div>
-        <CompanionBox :msgCompanion="statusMessage">
-            <template #companionActions>
-                <span>
-                    {{ $gettext('Bearbeitungszeit') }}
-                    <StudipDate :date="startDate" /> - <StudipDate :date="endDate" />
-                </span>
-            </template>
-        </CompanionBox>
-
         <section v-if="tasks.length > 0">
             <table class="default">
                 <caption>
@@ -48,12 +39,10 @@
 <script>
 import { mapGetters } from 'vuex';
 import CompanionBox from '../layouts/CoursewareCompanionBox.vue';
-import StudipDate from '../../StudipDate.vue';
 import TaskItem from './TaskGroupTaskItem.vue';
-import { getStatus } from './task-groups-helper.js';
 
 export default {
-    components: { CompanionBox, StudipDate, TaskItem },
+    components: { CompanionBox, TaskItem },
     props: ['taskGroup', 'tasks'],
     computed: {
         ...mapGetters({
@@ -64,21 +53,6 @@ export default {
                 taskGroup: this.taskGroup.attributes.title,
             });
         },
-        endDate() {
-            return new Date(this.taskGroup.attributes['end-date']);
-        },
-        isAfter() {
-            return new Date() > this.endDate;
-        },
-        startDate() {
-            return new Date(this.taskGroup.attributes['start-date']);
-        },
-        status() {
-            return getStatus(this.taskGroup);
-        },
-        statusMessage() {
-            return this.status.description;
-        },
     },
 };
 </script>