Change button colors

src/app/state/state.component.html

@@ -38,17 +38,17 @@
 			</button>
 		</div>
 		<div *ngIf="state.state == 'questionnaire'">
-			<button (click)="dialog.openQuestionnaire(state$)" mat-raised-button class="mat-elevation-z6">
+			<button (click)="dialog.openQuestionnaire(state$)" mat-raised-button color="accent" class="mat-elevation-z6">
 				Questionnaire
 			</button>
 		</div>
 		<div *ngIf="state.state == 'failed'">
-			<button (click)="dialog.openMessage(state)" mat-raised-button class="mat-elevation-z6">
+			<button (click)="dialog.openMessage(state)" mat-raised-button color="accent" class="mat-elevation-z6">
 				Failure
 			</button>
 		</div>
 		<div *ngIf="state.state == 'rejected'">
-			<button (click)="dialog.openMessage(state)" mat-raised-button class="mat-elevation-z6">
+			<button (click)="dialog.openMessage(state)" mat-raised-button color="accent" class="mat-elevation-z6">
 				Rejected
 			</button>
 		</div>