diff --git a/src/addons/mod/lti/services/handlers/module.ts b/src/addons/mod/lti/services/handlers/module.ts
index 1494456b3..545aa262f 100644
--- a/src/addons/mod/lti/services/handlers/module.ts
+++ b/src/addons/mod/lti/services/handlers/module.ts
@@ -22,6 +22,7 @@ import { AddonModLtiHelper } from '../lti-helper';
 import { AddonModLtiIndexComponent } from '../../components/index';
 import { CoreModuleHandlerBase } from '@features/course/classes/module-base-handler';
 import { CoreCourse } from '@features/course/services/course';
+import { CoreSites } from '@services/sites';
 
 /**
  * Handler to support LTI modules.
@@ -86,6 +87,19 @@ export class AddonModLtiModuleHandlerService extends CoreModuleHandlerBase imple
         return module?.modicon ?? modicon ?? CoreCourse.getModuleIconSrc(this.modName);
     }
 
+    /**
+     * @inheritdoc
+     */
+    iconIsShape(module?: CoreCourseModuleData | undefined, modicon?: string | undefined): boolean | undefined {
+        const iconUrl = module?.modicon ?? modicon;
+
+        if (!iconUrl) {
+            return true;
+        }
+
+        return iconUrl.startsWith(CoreSites.getRequiredCurrentSite().siteUrl);
+    }
+
 }
 
 export const AddonModLtiModuleHandler = makeSingleton(AddonModLtiModuleHandlerService);
diff --git a/src/core/components/mod-icon/mod-icon.html b/src/core/components/mod-icon/mod-icon.html
index 58842cb13..46777347a 100644
--- a/src/core/components/mod-icon/mod-icon.html
+++ b/src/core/components/mod-icon/mod-icon.html
@@ -1,5 +1,5 @@
 <img *ngIf="!isLocalUrl" [src]="icon" [alt]="showAlt ? modNameTranslated : ''" [attr.role]="!showAlt ? 'presentation' : null"
-    class="core-module-icon" core-external-content [component]="linkIconWithComponent ? modname : null"
+    class="core-module-icon" [class.no-filter]="noFilter" core-external-content [component]="linkIconWithComponent ? modname : null"
     [componentId]="linkIconWithComponent ? componentId : null" (error)="loadFallbackIcon()">
 <img *ngIf="isLocalUrl" [src]="icon" [alt]="showAlt ? modNameTranslated : ''" [attr.role]="!showAlt ? 'presentation' : null"
-    class="core-module-icon" (error)="loadFallbackIcon()">
+    class="core-module-icon" [class.no-filter]="noFilter" (error)="loadFallbackIcon()">
diff --git a/src/core/components/mod-icon/mod-icon.scss b/src/core/components/mod-icon/mod-icon.scss
index f5f7dbdcb..5ab0db1f0 100644
--- a/src/core/components/mod-icon/mod-icon.scss
+++ b/src/core/components/mod-icon/mod-icon.scss
@@ -42,6 +42,11 @@ img {
         white-space: nowrap;
         overflow: hidden;
     }
+
+    &.no-filter {
+        --filter: none;
+    }
+
 }
 
 :host-context(ion-item) {
diff --git a/src/core/components/mod-icon/mod-icon.ts b/src/core/components/mod-icon/mod-icon.ts
index f2e59c7d7..1d2f018b2 100644
--- a/src/core/components/mod-icon/mod-icon.ts
+++ b/src/core/components/mod-icon/mod-icon.ts
@@ -13,7 +13,7 @@
 // limitations under the License.
 
 import { CoreConstants, ModPurpose } from '@/core/constants';
-import { Component, ElementRef, Input, OnChanges, OnInit, SimpleChange } from '@angular/core';
+import { Component, ElementRef, EventEmitter, Input, OnChanges, OnInit, Output, SimpleChange } from '@angular/core';
 import { CoreCourse } from '@features/course/services/course';
 import { CoreCourseModuleDelegate } from '@features/course/services/module-delegate';
 import { CoreSites } from '@services/sites';
@@ -34,9 +34,12 @@ export class CoreModIconComponent implements OnInit, OnChanges {
     @Input() modname?: string; // The module name. Used also as component if set.
     @Input() componentId?: number; // Component Id for external icons.
     @Input() modicon?: string; // Module icon url or local url.
+    @Input() noFilter?: boolean; // Whether to disable filters.
     @Input() showAlt = true; // Show alt otherwise it's only presentation icon.
     @Input() purpose: ModPurpose = ModPurpose.MOD_PURPOSE_OTHER; // Purpose of the module.
 
+    @Output() failedLoading = new EventEmitter<void>();
+
     icon = '';
     modNameTranslated = '';
     isLocalUrl = true;
@@ -122,6 +125,8 @@ export class CoreModIconComponent implements OnInit, OnChanges {
         }
 
         this.icon = path + moduleName + '.svg';
+
+        this.failedLoading.emit();
     }
 
 }
diff --git a/src/core/features/course/services/module-delegate.ts b/src/core/features/course/services/module-delegate.ts
index f8dead8d3..0a6a2af3a 100644
--- a/src/core/features/course/services/module-delegate.ts
+++ b/src/core/features/course/services/module-delegate.ts
@@ -87,6 +87,15 @@ export interface CoreCourseModuleHandler extends CoreDelegateHandler {
      */
     getIconSrc?(module?: CoreCourseModuleData, modicon?: string): Promise<string | undefined> | string | undefined;
 
+    /**
+     * Check whether the icon should be treated as a shape or a rich image.
+     *
+     * @param module Module to get the icon from.
+     * @param modicon The mod icon string.
+     * @returns Whether the icon should be treated as a shape.
+     */
+    iconIsShape?(module?: CoreCourseModuleData, modicon?: string): Promise<boolean | undefined> | boolean | undefined;
+
     /**
      * Check if this type of module supports a certain feature.
      * If this function is implemented, the supportedFeatures object will be ignored.
@@ -396,6 +405,18 @@ export class CoreCourseModuleDelegateService extends CoreDelegate<CoreCourseModu
         return icon ?? CoreCourse.getModuleIconSrc(modname, modicon) ?? '';
     }
 
+    /**
+     * Get whether the icon for the given module should be treated as a shape or a rich image.
+     *
+     * @param modname The name of the module type.
+     * @param modicon The mod icon string.
+     * @param module The module to use.
+     * @returns Whether the icon should be treated as a shape.
+     */
+    async moduleIconIsShape(modname: string, modicon?: string, module?: CoreCourseModuleData): Promise<boolean | undefined> {
+        return await this.executeFunctionOnEnabled<Promise<boolean>>(modname, 'iconIsShape', [module, modicon]);
+    }
+
     /**
      * Check if a certain type of module supports a certain feature.
      *
diff --git a/src/core/features/grades/pages/course/course.html b/src/core/features/grades/pages/course/course.html
index 70cc02b61..44236689c 100644
--- a/src/core/features/grades/pages/course/course.html
+++ b/src/core/features/grades/pages/course/course.html
@@ -48,7 +48,8 @@
                                     <img *ngIf="row.image && !row.itemmodule" [src]="row.image" slot="start" class="core-module-icon"
                                         [alt]="row.iconAlt" />
                                     <core-mod-icon *ngIf="row.image && row.itemmodule" [modicon]="row.image" slot="start"
-                                        [modname]="row.itemmodule">
+                                        [modname]="row.itemmodule" [noFilter]="row.imageIsShape === false"
+                                        (failedLoading)="failedLoadingRowImage(row)">
                                     </core-mod-icon>
                                     <span [innerHTML]="row.gradeitem"></span>
                                 </th>
diff --git a/src/core/features/grades/pages/course/course.page.ts b/src/core/features/grades/pages/course/course.page.ts
index c70adc1a8..508d99488 100644
--- a/src/core/features/grades/pages/course/course.page.ts
+++ b/src/core/features/grades/pages/course/course.page.ts
@@ -239,4 +239,13 @@ export class CoreGradesCoursePage implements AfterViewInit, OnDestroy {
         infiniteComplete && infiniteComplete();
     }
 
+    /**
+     * Handle row image failed loading.
+     *
+     * @param row Row data.
+     */
+    failedLoadingRowImage(row: CoreGradesFormattedTableRow): void {
+        delete row.imageIsShape;
+    }
+
 }
diff --git a/src/core/features/grades/services/grades-helper.ts b/src/core/features/grades/services/grades-helper.ts
index fb5d4b3f3..96c4ea06e 100644
--- a/src/core/features/grades/services/grades-helper.ts
+++ b/src/core/features/grades/services/grades-helper.ts
@@ -684,14 +684,16 @@ export class CoreGradesHelperProvider {
             row.iconAlt = Translate.instant('core.grades.calculatedgrade');
         } else if (text.indexOf('/mod/') > -1) {
             const module = text.match(/mod\/([^/]*)\//);
-            if (module?.[1] !== undefined) {
+            const modname = module?.[1];
+
+            if (modname !== undefined) {
+                const modicon = CoreDomUtils.convertToElement(text).querySelector('img')?.getAttribute('src') ?? undefined;
+
                 row.itemtype = 'mod';
-                row.itemmodule = module[1];
+                row.itemmodule = modname;
                 row.iconAlt = CoreCourse.translateModuleName(row.itemmodule) || '';
-                row.image = await CoreCourseModuleDelegate.getModuleIconSrc(
-                    module[1],
-                    CoreDomUtils.convertToElement(text).querySelector('img')?.getAttribute('src') ?? undefined,
-                );
+                row.image = await CoreCourseModuleDelegate.getModuleIconSrc(modname, modicon);
+                row.imageIsShape = await CoreCourseModuleDelegate.moduleIconIsShape(modname, modicon);
             }
         } else {
             if (row.rowspan && row.rowspan > 1) {
@@ -804,6 +806,7 @@ export type CoreGradesFormattedRowCommonData = {
     rowclass?: string;
     itemtype?: string;
     image?: string;
+    imageIsShape?: boolean;
     itemmodule?: string;
     iconAlt?: string;
     rowspan?: number;