diff --git a/package-lock.json b/package-lock.json
index 40c3b2a78c5a60d73d2e6b9442cfa7e556528463..b4e5363b00e659b474b015833fc580b4a59509ac 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9288,6 +9288,11 @@
       "integrity": "sha512-MFh0d/Wa7vkKO3Y3LlacqAEeHK0mckVqzDieUKTT+KGxi+zIpeVsFxymkIiRpbpDziHc290Xr9A1O4Om7otoRA==",
       "dev": true
     },
+    "ngx-konami": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/ngx-konami/-/ngx-konami-1.6.0.tgz",
+      "integrity": "sha512-no/NocDjFnGw5XlNlj6LavP2YA3NxEg3eIHylU9dblkl5JgcfIEw3YntRs9/3OUSnVZGhZSNZkO35sY2AGtkoA=="
+    },
     "ngx-material-file-input": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ngx-material-file-input/-/ngx-material-file-input-1.1.1.tgz",
diff --git a/package.json b/package.json
index 1a469f1b3c2750fd80c834633e1d3d9fed03ece0..f77a59680f2e006ff69365814fd41908f3aa829f 100644
--- a/package.json
+++ b/package.json
@@ -57,6 +57,7 @@
     "jalhyd": "file:../jalhyd",
     "material-design-icons": "^3.0.1",
     "mathjax": "^2.7.5",
+    "ngx-konami": "^1.6.0",
     "ngx-material-file-input": "^1.1.1",
     "ngx-md": "^8.0.0",
     "ngx-webstorage-service": "^4.0.1",
diff --git a/src/app/app.module.ts b/src/app/app.module.ts
index c9ec24010f9eb43f0a83385406b6743c543b3043..19cc15e1ebd009882841e288864fa1c8243e5c56 100644
--- a/src/app/app.module.ts
+++ b/src/app/app.module.ts
@@ -28,6 +28,7 @@ import {
 import { MaterialFileInputModule } from "ngx-material-file-input";
 
 import {TableModule} from "primeng/components/table/table";
+import { KonamiModule } from "ngx-konami";
 
 import { FlexLayoutModule } from "@angular/flex-layout";
 import {
@@ -148,7 +149,8 @@ const appRoutes: Routes = [
       }
     ),
     StorageServiceModule,
-    TableModule
+    TableModule,
+    KonamiModule
   ],
   declarations: [ // composants, pipes et directives
     AppComponent,
diff --git a/src/app/components/calculator-list/calculator-list.component.html b/src/app/components/calculator-list/calculator-list.component.html
index 1f83baffb89031c11fc161998bfbe66797bd0306..65ea10765799050325d4527513b944282a5db5ab 100644
--- a/src/app/components/calculator-list/calculator-list.component.html
+++ b/src/app/components/calculator-list/calculator-list.component.html
@@ -1,4 +1,4 @@
-<div class="container" fxLayout="row wrap" fxLayoutAlign="space-evenly stretch">
+<div class="container" fxLayout="row wrap" fxLayoutAlign="space-evenly stretch" (konami)="onKC()">
 
     <mat-card class="welcome-card" *ngIf="nbOpenCalculators === 0">
 
diff --git a/src/app/components/calculator-list/calculator-list.component.ts b/src/app/components/calculator-list/calculator-list.component.ts
index c4acb05d66f1251e2ebc8a26f1fa66f927bd9a14..d58d2758e6b4c99f450a63ce4b63589e60513537 100644
--- a/src/app/components/calculator-list/calculator-list.component.ts
+++ b/src/app/components/calculator-list/calculator-list.component.ts
@@ -142,6 +142,13 @@ export class CalculatorListComponent implements OnInit {
         return ServiceFactory.instance.i18nService.localizeText("INFO_WELCOME_CONTENT");
     }
 
+    public onKC() {
+        for (const i of this.items) {
+            i.image.path = "assets/images/themes/sp.jpg";
+            i.image.credits = "lol";
+        }
+    }
+
     // interface Observer
 
     update(sender: any, data: any): void {
diff --git a/src/assets/images/themes/sp.jpg b/src/assets/images/themes/sp.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..7591c7594f0ae476461fb9aa4831e5ae8a8b9b11
Binary files /dev/null and b/src/assets/images/themes/sp.jpg differ