Use dedicated component to display the version.

src/app/app.component.html

@@ -14,5 +14,5 @@
   </div>
   <div class="errormessage" *ngIf="step.error" [innerHTML]="step.message"></div>
 </div>
-<span>Version: {{VERSION}}</span>
+<app-version></app-version>
 <!--<router-outlet></router-outlet>-->

src/app/app.component.ts

@@ -3,7 +3,6 @@ import {ConverterRegistryService} from './converterregistry.service';
 import {InputComponentManagerService} from './inputcomponentmanager.service';
 import {Step} from './step';
 import {Converter} from './converter/converter';
-import {environment} from '../environments/environment';
 
 @Component({
   selector: 'app-root',
@@ -11,7 +10,6 @@ import {environment} from '../environments/environment';
   styleUrls: ['./app.component.scss']
 })
 export class AppComponent implements OnInit {
-  public readonly VERSION: string = environment.appVersion;
   public steps: Step[] = [];
   public converters: Converter[] = [];
 

src/app/app.module.ts

@@ -5,16 +5,22 @@ import {ConverterRegistryService} from './converterregistry.service';
 import {InputComponentManagerService} from './inputcomponentmanager.service';
 import {NativeLibraryWrapperService} from './nativelibrarywrapper.service';
 import {FormsModule} from '@angular/forms';
+import {VersionComponent} from './version/version.component';
 
 @NgModule({
   declarations: [
-    AppComponent
+    AppComponent,
+    VersionComponent
   ],
   imports: [
     BrowserModule,
     FormsModule
   ],
-  providers: [ConverterRegistryService, InputComponentManagerService, NativeLibraryWrapperService],
+  providers: [
+    ConverterRegistryService,
+    InputComponentManagerService,
+    NativeLibraryWrapperService
+  ],
   bootstrap: [AppComponent]
 })
 export class AppModule {

src/app/version/version.component.html

@@ -0,0 +1 @@
+<div [ngClass]="{dev: !PROD}">Version: {{VERSION}}</div>

src/app/version/version.component.scss

@@ -0,0 +1,10 @@
+div {
+  font-size: smaller;
+  color: gray;
+  display: block;
+  text-align: right;
+  margin-right: 2em;
+  &.dev {
+    color: red;
+  }
+}

src/app/version/version.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { VersionComponent } from './version.component';
+
+describe('VersionComponent', () => {
+  let component: VersionComponent;
+  let fixture: ComponentFixture<VersionComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ VersionComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(VersionComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/version/version.component.ts

@@ -0,0 +1,15 @@
+import {Component} from '@angular/core';
+import {environment} from '../../environments/environment';
+
+@Component({
+  selector: 'app-version',
+  templateUrl: './version.component.html',
+  styleUrls: ['./version.component.scss']
+})
+export class VersionComponent {
+  public readonly PROD: boolean = environment.production;
+  public readonly VERSION: string = environment.appVersion + (this.PROD ? '' : ' (development build)');
+
+  constructor() {
+  }
+}