diff --git a/src/addon/mod/forum/components/post/post.scss b/src/addon/mod/forum/components/post/post.scss
index 995dc2f13..96f1b39dd 100644
--- a/src/addon/mod/forum/components/post/post.scss
+++ b/src/addon/mod/forum/components/post/post.scss
@@ -2,6 +2,10 @@ ion-app.app-root addon-mod-forum-post .addon-mod_forum-post {
     background-color: $white;
     border-bottom: 1px solid $list-md-border-color;
 
+    @include darkmode() {
+        background-color: $core-dark-item-bg-color;
+    }
+
     .addon-forum-star {
         color: $core-star-color;
     }
diff --git a/src/addon/mod/forum/pages/discussion/discussion.scss b/src/addon/mod/forum/pages/discussion/discussion.scss
index 54d9b1f0c..fcc1213fd 100644
--- a/src/addon/mod/forum/pages/discussion/discussion.scss
+++ b/src/addon/mod/forum/pages/discussion/discussion.scss
@@ -2,7 +2,7 @@ ion-app.app-root page-addon-mod-forum-discussion {
     .highlight .card-header .item {
         background-color: $gray-lighter;
         @include darkmode() {
-            background-color: $black;
+            background-color: $gray-dark;
         }
     }
 
diff --git a/src/addon/mod/forum/pages/discussion/discussion.ts b/src/addon/mod/forum/pages/discussion/discussion.ts
index e49b8684d..48fa5d18a 100644
--- a/src/addon/mod/forum/pages/discussion/discussion.ts
+++ b/src/addon/mod/forum/pages/discussion/discussion.ts
@@ -22,6 +22,7 @@ import { CoreSitesProvider } from '@providers/sites';
 import { CoreDomUtilsProvider } from '@providers/utils/dom';
 import { CoreUtilsProvider } from '@providers/utils/utils';
 import { CoreFileUploaderProvider } from '@core/fileuploader/providers/fileuploader';
+import { CoreUserProvider } from '@core/user/providers/user';
 import { CoreSplitViewComponent } from '@components/split-view/split-view';
 import { CoreRatingProvider, CoreRatingInfo } from '@core/rating/providers/rating';
 import { CoreRatingOfflineProvider } from '@core/rating/providers/offline';
@@ -57,7 +58,7 @@ export class AddonModForumDiscussionPage implements OnDestroy {
     isOnline: boolean;
     isSplitViewOn: boolean;
     postHasOffline: boolean;
-    sort: SortType = 'flat-oldest';
+    sort: SortType = 'nested';
     trackPosts: boolean;
     replyData = {
         replyingTo: 0,
@@ -96,19 +97,20 @@ export class AddonModForumDiscussionPage implements OnDestroy {
     constructor(navParams: NavParams,
             network: Network,
             zone: NgZone,
-            private appProvider: CoreAppProvider,
-            private eventsProvider: CoreEventsProvider,
-            private sitesProvider: CoreSitesProvider,
-            private domUtils: CoreDomUtilsProvider,
-            private utils: CoreUtilsProvider,
-            private translate: TranslateService,
-            private uploaderProvider: CoreFileUploaderProvider,
-            private forumProvider: AddonModForumProvider,
-            private forumOffline: AddonModForumOfflineProvider,
-            private forumHelper: AddonModForumHelperProvider,
-            private forumSync: AddonModForumSyncProvider,
-            private ratingOffline: CoreRatingOfflineProvider,
-            @Optional() private svComponent: CoreSplitViewComponent,
+            protected appProvider: CoreAppProvider,
+            protected eventsProvider: CoreEventsProvider,
+            protected sitesProvider: CoreSitesProvider,
+            protected domUtils: CoreDomUtilsProvider,
+            protected utils: CoreUtilsProvider,
+            protected translate: TranslateService,
+            protected uploaderProvider: CoreFileUploaderProvider,
+            protected forumProvider: AddonModForumProvider,
+            protected forumOffline: AddonModForumOfflineProvider,
+            protected forumHelper: AddonModForumHelperProvider,
+            protected forumSync: AddonModForumSyncProvider,
+            protected ratingOffline: CoreRatingOfflineProvider,
+            protected userProvider: CoreUserProvider,
+            @Optional() protected svComponent: CoreSplitViewComponent,
             protected navCtrl: NavController) {
         this.courseId = navParams.get('courseId');
         this.cmId = navParams.get('cmId');
@@ -134,7 +136,29 @@ export class AddonModForumDiscussionPage implements OnDestroy {
      * View loaded.
      */
     ionViewDidLoad(): void {
-        this.sitesProvider.getCurrentSite().getLocalSiteConfig('AddonModForumDiscussionSort', this.sort).then((value) => {
+        this.sitesProvider.getCurrentSite().getLocalSiteConfig('AddonModForumDiscussionSort').catch(() => {
+            this.userProvider.getUserPreference('forum_displaymode').catch(() => {
+                // Ignore errors.
+            }).then((value) => {
+                const sortValue = value && parseInt(value, 10);
+
+                switch (sortValue) {
+                    case 1:
+                        this.sort = 'flat-oldest';
+                        break;
+                    case -1:
+                        this.sort = 'flat-newest';
+                        break;
+                    case 3:
+                        this.sort = 'nested';
+                        break;
+                    case 2: // Threaded not implemented.
+                    default:
+                        // Not set, use default sort.
+                        // @TODO add fallback to $CFG->forum_displaymode.
+                }
+            });
+        }).then((value) => {
             this.sort = value;
         }).finally(() => {
             this.fetchPosts(true, false, true).then(() => {
diff --git a/src/addon/mod/scorm/components/index/addon-mod-scorm-index.html b/src/addon/mod/scorm/components/index/addon-mod-scorm-index.html
index 265323472..c7f421705 100644
--- a/src/addon/mod/scorm/components/index/addon-mod-scorm-index.html
+++ b/src/addon/mod/scorm/components/index/addon-mod-scorm-index.html
@@ -51,8 +51,8 @@
                     <h3>{{ 'addon.mod_scorm.gradeforattempt' | translate }} {{attempt.number}}</h3>
                     <p item-content *ngIf="attempt.grade != -1">{{ attempt.grade }}</p>
                     <p item-content *ngIf="attempt.grade == -1">{{ 'addon.mod_scorm.cannotcalculategrade' | translate }}</p>
-                    <p item-content *ngIf="scorm.maxattempt == 0 || attempt.number <= scorm.maxattempt">{{ 'addon.mod_scorm.offlineattemptnote' | translate }}</p>
-                    <p item-content *ngIf="scorm.maxattempt != 0 && attempt.number > scorm.maxattempt">{{ 'addon.mod_scorm.offlineattemptovermax' | translate }}</p>
+                    <p *ngIf="scorm.maxattempt == 0 || attempt.number <= scorm.maxattempt">{{ 'addon.mod_scorm.offlineattemptnote' | translate }}</p>
+                    <p *ngIf="scorm.maxattempt != 0 && attempt.number > scorm.maxattempt">{{ 'addon.mod_scorm.offlineattemptovermax' | translate }}</p>
                 </ion-item>
                 <ion-item text-wrap *ngIf="scorm.displayattemptstatus && scorm.gradeMethodReadable">
                     <h3>{{ 'addon.mod_scorm.grademethod' | translate }}</h3>
@@ -95,9 +95,9 @@
                     <!-- If data shown doesn't belong to last attempt, show a warning. -->
                     <p *ngIf="attemptToContinue">{{ 'addon.mod_scorm.dataattemptshown' | translate:{number: attemptToContinue} }}</p>
                     <p>{{ currentOrganization.title }}</p>
-                    <div *ngFor="let sco of toc" class="core-padding-{{sco.level}}">
+                    <div *ngFor="let sco of toc" class="core-padding-{{sco.level}} addon-mod_scorm-type-{{sco.scormtype}}">
                         <p *ngIf="sco.isvisible">
-                            <img [src]="sco.image.url" [alt]="sco.image.description" />
+                            <core-icon [name]="sco.image.icon" [label]="sco.image.description" item-start></core-icon>
                             <a *ngIf="sco.prereq && sco.launch" (click)="open($event, sco.id)"><core-format-text [text]="sco.title" contextLevel="module" [contextInstanceId]="module.id" [courseId]="courseId"></core-format-text></a>
                             <span *ngIf="!sco.prereq || !sco.launch"><core-format-text [text]="sco.title" contextLevel="module" [contextInstanceId]="module.id" [courseId]="courseId"></core-format-text></span>
                             <span *ngIf="accessInfo && accessInfo.canviewscores && sco.score_raw">({{ 'addon.mod_scorm.score' | translate }}: {{sco.score_raw}})</span>
diff --git a/src/addon/mod/scorm/components/index/index.scss b/src/addon/mod/scorm/components/index/index.scss
index 67f01dcb6..763ae6067 100644
--- a/src/addon/mod/scorm/components/index/index.scss
+++ b/src/addon/mod/scorm/components/index/index.scss
@@ -1,9 +1,13 @@
-ion-app.app-root addon-mod-scorm-index {
-
+ion-app.app-root addon-mod-scorm-index,
+ion-app.app-root page-addon-mod-scorm-toc {
     .addon-mod_scorm-toc {
-        img {
-            width: auto;
-            display: inline;
+        // Hide all non sco icons using css to maintain padding.
+        ion-icon {
+            opacity: 0;
+        }
+
+        .addon-mod_scorm-type-sco ion-icon {
+            opacity: 1
         }
     }
 }
diff --git a/src/addon/mod/scorm/pages/toc/toc.html b/src/addon/mod/scorm/pages/toc/toc.html
index 0cff8c294..0ce9163f0 100644
--- a/src/addon/mod/scorm/pages/toc/toc.html
+++ b/src/addon/mod/scorm/pages/toc/toc.html
@@ -10,7 +10,7 @@
 </ion-header>
 <ion-content>
     <nav>
-        <ion-list>
+        <ion-list class="addon-mod_scorm-toc">
             <ion-item text-wrap *ngIf="attemptToContinue">
                 <p>{{ 'addon.mod_scorm.dataattemptshown' | translate:{number: attemptToContinue} }}</p>
             </ion-item>
@@ -23,8 +23,8 @@
 
             <!-- List of SCOs. -->
             <ng-container *ngFor="let sco of toc">
-                <a *ngIf="sco.isvisible" ion-item text-wrap [ngClass]="'core-padding-' + sco.level" [class.core-nav-item-selected]="selected == sco.id" (click)="loadSco(sco)" [attr.disabled]="!sco.prereq || !sco.launch ? true : null" [attr.detail-none]="!sco.prereq || !sco.launch ? true : null">
-                    <img [src]="sco.image.url" [alt]="sco.image.description" />
+                <a *ngIf="sco.isvisible" ion-item text-wrap [ngClass]="'core-padding-' + sco.level + ' addon-mod_scorm-type-' + sco.scormtype" [class.core-nav-item-selected]="selected == sco.id" [class]="" (click)="loadSco(sco)" [attr.disabled]="!sco.prereq || !sco.launch ? true : null" [attr.detail-none]="!sco.prereq || !sco.launch ? true : null">
+                    <core-icon [name]="sco.image.icon" [label]="sco.image.description" item-start></core-icon>
                     <core-format-text [text]="sco.title" contextLevel="module" [contextInstanceId]="moduleId" [courseId]="courseId"></core-format-text>
                     <span *ngIf="accessInfo && accessInfo.canviewscores && sco.score_raw">({{ 'addon.mod_scorm.score' | translate }}: {{sco.score_raw}})</span>
                 </a>
diff --git a/src/addon/mod/scorm/pages/toc/toc.module.ts b/src/addon/mod/scorm/pages/toc/toc.module.ts
index 0a0197203..fec325aeb 100644
--- a/src/addon/mod/scorm/pages/toc/toc.module.ts
+++ b/src/addon/mod/scorm/pages/toc/toc.module.ts
@@ -16,6 +16,7 @@ import { NgModule } from '@angular/core';
 import { IonicPageModule } from 'ionic-angular';
 import { TranslateModule } from '@ngx-translate/core';
 import { CoreDirectivesModule } from '@directives/directives.module';
+import { CoreComponentsModule } from '@components/components.module';
 import { AddonModScormTocPage } from './toc';
 
 @NgModule({
@@ -24,6 +25,7 @@ import { AddonModScormTocPage } from './toc';
     ],
     imports: [
         CoreDirectivesModule,
+        CoreComponentsModule,
         IonicPageModule.forChild(AddonModScormTocPage),
         TranslateModule.forChild()
     ],
diff --git a/src/addon/mod/scorm/providers/scorm.ts b/src/addon/mod/scorm/providers/scorm.ts
index 2592cbb25..a8424dc3f 100644
--- a/src/addon/mod/scorm/providers/scorm.ts
+++ b/src/addon/mod/scorm/providers/scorm.ts
@@ -106,6 +106,22 @@ export class AddonModScormProvider {
         'b': 'browsed',
         'n': 'notattempted'
     };
+    protected static STATUS_TO_ICON = {
+        assetc: 'fa-file-archive-o',
+        asset: 'fa-file-archive-o',
+        browsed: 'fa-book',
+        completed: 'fa-check-square-o',
+        failed: 'fa-times',
+        incomplete: 'fa-pencil-square-o',
+        minus: 'fa-minus',
+        notattempted: 'fa-square-o',
+        passed: 'fa-check',
+        plus: 'fa-plus',
+        popdown: 'fa-window-close-o',
+        popup: 'fa-window-restore',
+        suspend: 'fa-pause',
+        wait: 'fa-clock-o',
+    };
 
     protected ROOT_CACHE_KEY = 'mmaModScorm:';
     protected logger;
@@ -1048,39 +1064,56 @@ export class AddonModScormProvider {
      * @param incomplete Whether the SCORM is incomplete.
      * @return Image URL and description.
      */
-    getScoStatusIcon(sco: any, incomplete?: boolean): {url: string, description: string} {
+    getScoStatusIcon(sco: any, incomplete?: boolean): {icon: string, description: string} {
         let imageName = '',
             descName = '',
-            status;
+            suspendedStr = '';
 
-        if (sco.scormtype == 'sco') {
-            // Not an asset, calculate image using status.
-            status = sco.status;
-            if (this.VALID_STATUSES.indexOf(status) < 0) {
-                // Status empty or not valid, use 'notattempted'.
-                status = 'notattempted';
-            }
+        const status = sco.status;
 
-            if (!incomplete) {
-                // Check if SCO is completed or not. If SCORM is incomplete there's no need to check SCO.
-                incomplete = this.isStatusIncomplete(status);
-            }
+        if (sco.isvisible) {
+            if (this.VALID_STATUSES.indexOf(status) >= 0) {
+                if (sco.scormtype == 'sco') {
+                    imageName = status;
+                    descName = status;
+                } else {
+                    imageName = 'asset';
+                    descName = 'assetlaunched';
+                }
 
-            if (incomplete && sco.exitvalue == 'suspend') {
-                imageName = 'suspend';
-                descName = 'suspended';
+                if (!incomplete) {
+                    // Check if SCO is completed or not. If SCORM is incomplete there's no need to check SCO.
+                    incomplete = this.isStatusIncomplete(status);
+                }
+
+                if (incomplete && sco.exitvalue == 'suspend') {
+                    imageName = 'suspend';
+                    suspendedStr = ' - ' + this.translate.instant('addon.mod_scorm.suspended');
+                }
             } else {
-                imageName = sco.status;
-                descName = sco.status;
+                incomplete = true;
+
+                if (sco.scormtype == 'sco') {
+                    // Status empty or not valid, use 'notattempted'.
+                    imageName = 'notattempted';
+                } else {
+                    imageName = 'asset';
+                }
+                descName = imageName;
             }
-        } else {
-            imageName = 'asset';
-            descName = (!sco.status || sco.status == 'notattempted') ? 'asset' : 'assetlaunched';
         }
 
+        if (imageName == '') {
+            imageName = 'notattempted';
+            descName = 'notattempted';
+            suspendedStr = '';
+        }
+
+        sco.incomplete = incomplete;
+
         return {
-            url: 'assets/img/scorm/' + imageName + '.gif',
-            description: this.translate.instant('addon.mod_scorm.' + descName)
+            icon: AddonModScormProvider.STATUS_TO_ICON[imageName],
+            description: this.translate.instant('addon.mod_scorm.' + descName) + suspendedStr
         };
     }
 
diff --git a/src/addon/mod/survey/components/index/addon-mod-survey-index.html b/src/addon/mod/survey/components/index/addon-mod-survey-index.html
index ba98f38ae..42c41ddd0 100644
--- a/src/addon/mod/survey/components/index/addon-mod-survey-index.html
+++ b/src/addon/mod/survey/components/index/addon-mod-survey-index.html
@@ -39,8 +39,8 @@
             <div *ngIf="question.multiArray && question.multiArray.length" [attr.padding-top]="index == 1">
                 <h3 padding-horizontal>{{ question.text }}</h3>
                 <ion-grid no-padding>
-                    <ion-row no-padding align-items-center class="hidden-phone">
-                        <ion-col col-7>
+                    <ion-row no-padding nowrap align-items-center class="hidden-phone">
+                        <ion-col col-6>
                             <div padding>{{ 'addon.mod_survey.responses' | translate }}</div>
                         </ion-col>
                         <ion-col text-center *ngFor="let option of question.optionsArray">
@@ -56,7 +56,7 @@
             <!-- Subquestion -->
             <ion-grid no-padding *ngIf="question.parent !== 0" text-wrap [class.even]="isEven">
                 <ion-row no-padding nowrap align-items-center radio-group [(ngModel)]="answers[question.name]" [required]="question.required">
-                    <ion-col col-7>
+                    <ion-col col-6>
                         <ion-label padding-horizontal [core-mark-required]="question.required" id="addon-mod_survey-{{question.name}}"><strong>{{question.num}}.</strong> {{ question.text }}</ion-label>
                     </ion-col>
 
@@ -77,13 +77,13 @@
             <ng-container *ngIf="(!question.multiArray || question.multiArray.length == 0) && question.parent === 0">
                 <ion-grid no-padding text-wrap *ngIf="question.type > 0" [class.even]="isEven">
                     <ion-row no-padding align-items-center>
-                        <ion-col col-7>
+                        <ion-col col-6>
                             <ion-label [core-mark-required]="question.required" padding-horizontal id="addon-mod_survey-{{question.name}}"><strong>{{question.num}}.</strong> {{ question.text }}</ion-label>
                         </ion-col>
-                        <ion-col col-5>
+                        <ion-col col-6>
                             <ion-select padding [(ngModel)]="answers[question.name]" [attr.aria-labelledby]="'addon-mod_survey-'+question.name" interface="action-sheet" [required]="question.required">
-                            <ion-option *ngFor="let option of question.optionsArray; let value=index;" [value]="value">{{option}}</ion-option>
-                        </ion-select>
+                                <ion-option *ngFor="let option of question.optionsArray; let value=index;" [value]="value">{{option}}</ion-option>
+                            </ion-select>
                         </ion-col>
                     </ion-row>
                 </ion-grid>
diff --git a/src/addon/mod/survey/components/index/index.ts b/src/addon/mod/survey/components/index/index.ts
index dfa6696c3..633957845 100644
--- a/src/addon/mod/survey/components/index/index.ts
+++ b/src/addon/mod/survey/components/index/index.ts
@@ -163,13 +163,10 @@ export class AddonModSurveyIndexComponent extends CoreCourseModuleMainActivityCo
      * @return If answers are valid
      */
     isValidResponse(): boolean {
-        for (const x in this.answers) {
-            if (this.answers[x] === -1) {
-                return false;
-            }
-        }
-
-        return true;
+        return !this.questions.some((question) => {
+            return question.required && question.name &&
+                (question.type === 0 ? this.answers[question.name] == '' : parseInt(this.answers[question.name], 10) === -1);
+        });
     }
 
     /**
diff --git a/src/addon/mod/wiki/components/index/index.scss b/src/addon/mod/wiki/components/index/index.scss
index 4e4fcb283..a19821b4f 100644
--- a/src/addon/mod/wiki/components/index/index.scss
+++ b/src/addon/mod/wiki/components/index/index.scss
@@ -4,6 +4,11 @@ $addon-mod-wiki-toc-title-color:      $gray-darker !default;
 $addon-mod-wiki-toc-border-color:     $gray-dark !default;
 $addon-mod-wiki-toc-background-color: $gray-light !default;
 
+$addon-mod-wiki-dark-toc-title-color:      $white !default;
+$addon-mod-wiki-dark-toc-border-color:     $gray-dark !default;
+$addon-mod-wiki-dark-toc-background-color: $gray-darker !default;
+$addon-mod-wiki-dark-newentry-link-color: $red-light !default;
+
 ion-app.app-root addon-mod-wiki-index {
     background-color: $white;
     @include darkmode() {
@@ -28,6 +33,17 @@ ion-app.app-root addon-mod-wiki-index {
         a {
             color: $link-color;
         }
+
+        @include darkmode() {
+            border: 1px solid $addon-mod-wiki-dark-toc-border-color;
+            background: $addon-mod-wiki-dark-toc-background-color;
+            p {
+                color: $core-dark-text-color !important;
+            }
+            a {
+                color: $core-dark-link-color;
+            }
+        }
         margin: 16px;
         padding: 8px;
     }
@@ -55,6 +71,9 @@ ion-app.app-root addon-mod-wiki-index {
     .wiki_newentry {
         color: $addon-mod-wiki-newentry-link-color;
         font-style: italic;
+        @include darkmode() {
+            color: $addon-mod-wiki-dark-newentry-link-color !important;
+        }
     }
 
     /* Hide edit section links */
diff --git a/src/app/app.scss b/src/app/app.scss
index 6e71d9caf..75f830591 100644
--- a/src/app/app.scss
+++ b/src/app/app.scss
@@ -500,7 +500,7 @@ ion-app.app-root {
   @include darkmode() {
     ion-select.core-button-select,
     .core-button-select {
-      background-color: $core-dark-item-divider-bg-color;
+      background-color: $core-dark-item-bg-color;
 
 
       &.select-md,
@@ -509,7 +509,7 @@ ion-app.app-root {
       &.button-ios,
       &.select-wp,
       &.button-wp {
-        background: $core-dark-item-divider-bg-color;
+        background: $core-dark-item-bg-color;
       }
     }
   }
diff --git a/src/assets/img/scorm/asset.gif b/src/assets/img/scorm/asset.gif
deleted file mode 100644
index 09fa56516..000000000
Binary files a/src/assets/img/scorm/asset.gif and /dev/null differ
diff --git a/src/assets/img/scorm/browsed.gif b/src/assets/img/scorm/browsed.gif
deleted file mode 100644
index ea5e04081..000000000
Binary files a/src/assets/img/scorm/browsed.gif and /dev/null differ
diff --git a/src/assets/img/scorm/completed.gif b/src/assets/img/scorm/completed.gif
deleted file mode 100644
index 536191528..000000000
Binary files a/src/assets/img/scorm/completed.gif and /dev/null differ
diff --git a/src/assets/img/scorm/failed.gif b/src/assets/img/scorm/failed.gif
deleted file mode 100644
index d3ca67772..000000000
Binary files a/src/assets/img/scorm/failed.gif and /dev/null differ
diff --git a/src/assets/img/scorm/incomplete.gif b/src/assets/img/scorm/incomplete.gif
deleted file mode 100644
index fe2c6ea9d..000000000
Binary files a/src/assets/img/scorm/incomplete.gif and /dev/null differ
diff --git a/src/assets/img/scorm/notattempted.gif b/src/assets/img/scorm/notattempted.gif
deleted file mode 100644
index 7dbb43be5..000000000
Binary files a/src/assets/img/scorm/notattempted.gif and /dev/null differ
diff --git a/src/assets/img/scorm/passed.gif b/src/assets/img/scorm/passed.gif
deleted file mode 100644
index 536191528..000000000
Binary files a/src/assets/img/scorm/passed.gif and /dev/null differ
diff --git a/src/assets/img/scorm/suspend.gif b/src/assets/img/scorm/suspend.gif
deleted file mode 100644
index 35e8413f9..000000000
Binary files a/src/assets/img/scorm/suspend.gif and /dev/null differ
diff --git a/src/components/icon/icon.ts b/src/components/icon/icon.ts
index ffe497983..9bab34f9b 100644
--- a/src/components/icon/icon.ts
+++ b/src/components/icon/icon.ts
@@ -82,6 +82,7 @@ export class CoreIconComponent implements OnChanges, OnDestroy {
         !this.ariaLabel && this.newElement.setAttribute('aria-hidden', 'true');
         !this.ariaLabel && this.newElement.setAttribute('role', 'presentation');
         this.ariaLabel && this.newElement.setAttribute('aria-label', this.ariaLabel);
+        this.ariaLabel && this.newElement.setAttribute('title', this.ariaLabel);
 
         const attrs = this.element.attributes;
         for (let i = attrs.length - 1; i >= 0; i--) {
diff --git a/src/core/course/components/format/core-course-format.html b/src/core/course/components/format/core-course-format.html
index 07b21f6db..453928f72 100644
--- a/src/core/course/components/format/core-course-format.html
+++ b/src/core/course/components/format/core-course-format.html
@@ -11,7 +11,7 @@
         <core-loading [hideUntil]="loaded">
             <!-- Section selector. -->
             <core-dynamic-component [component]="sectionSelectorComponent" [data]="data">
-                <div text-wrap *ngIf="displaySectionSelector && sections && sections.length" padding class="clearfix" ion-row justify-content-between class="safe-padding-horizontal" [class.core-section-download]="downloadEnabled">
+                <div text-wrap *ngIf="displaySectionSelector && sections && sections.length" padding class="clearfix" ion-row justify-content-between class="safe-padding-horizontal core-button-selector-row" [class.core-section-download]="downloadEnabled">
                     <button float-start ion-button icon-start icon-end (click)="showSectionSelector($event)" color="light" class="core-button-select button-no-uppercase" ion-col [attr.aria-label]="('core.course.sections' | translate) + ': ' + (selectedSection && (selectedSection.formattedName || selectedSection.name))" aria-haspopup="true" [attr.aria-expanded]="sectionSelectorExpanded" aria-controls="core-course-section-selector" id="core-course-section-button">
                         <core-icon name="fa-folder"></core-icon>
                         <span class="core-button-select-text">{{selectedSection && (selectedSection.formattedName || selectedSection.name) || 'core.course.sections' | translate }}</span>
diff --git a/src/core/course/components/format/format.scss b/src/core/course/components/format/format.scss
index 34684e29c..dfbbc4033 100644
--- a/src/core/course/components/format/format.scss
+++ b/src/core/course/components/format/format.scss
@@ -64,6 +64,10 @@ ion-app.app-root core-course-format {
         @include padding(null, 0, null, null);
     }
 
+    .core-button-selector-row {
+        @include safe-area-padding-start($content-padding !important, $content-padding);
+    }
+
     .core-course-section-nav-buttons {
         .button-inner core-format-text {
             white-space: nowrap;
diff --git a/src/core/emulator/providers/zip.ts b/src/core/emulator/providers/zip.ts
index 3170023ad..1c3af04a7 100644
--- a/src/core/emulator/providers/zip.ts
+++ b/src/core/emulator/providers/zip.ts
@@ -88,7 +88,7 @@ export class ZipMock extends Zip {
             const destParent = destination.substring(0, source.lastIndexOf('/')),
                 destFolderName = destination.substr(source.lastIndexOf('/') + 1);
 
-            return this.file.createDir(destParent, destFolderName, false);
+            return this.file.createDir(destParent, destFolderName, true);
         }).then(() => {
 
             const promises = [],
diff --git a/src/providers/file.ts b/src/providers/file.ts
index 9dedaedbf..07d1628f5 100644
--- a/src/providers/file.ts
+++ b/src/providers/file.ts
@@ -1017,7 +1017,7 @@ export class CoreFileProvider {
             return this.zip.unzip(fileEntry.toURL(), destFolder, onProgress);
         }).then((result) => {
             if (result == -1) {
-                return Promise.reject(null);
+                return Promise.reject('Unzip failed.');
             }
         });
     }
diff --git a/src/theme/dark.scss b/src/theme/dark.scss
index fe18c049a..0e034de87 100644
--- a/src/theme/dark.scss
+++ b/src/theme/dark.scss
@@ -3,8 +3,8 @@ $core-dark-text-secondary-color: $gray-light !default;
 $core-dark-link-color: $blue-light !default;
 
 $core-dark-item-bg-color: $gray-darker !default;
-$core-dark-item-divider-bg-color: $black !default;
-$core-dark-background-color: $gray-dark !default;
+$core-dark-item-divider-bg-color: $gray-dark !default;
+$core-dark-background-color: $black !default;
 
 // Login.
 $core-dark-login-page-background-color: radial-gradient(white, $gray-dark) !default;
@@ -31,7 +31,8 @@ ion-app.app-root .ion-page {
     .item,
     .item-select,
     ion-card,
-    .card-header {
+    .card-header,
+    .card-content {
         color: $core-dark-text-color;
         background-color: $core-dark-item-bg-color;