[v4-beta7] ion-menu-button doesn't change color when toolbar has color prop set in ios

[sergiomilici]

Bug Report

Ionic Info

Ionic:

   ionic (Ionic CLI)          : 4.1.2 (/usr/local/lib/node_modules/ionic)
   Ionic Framework            : @ionic/angular 4.0.0-beta.7
   @angular-devkit/core       : 0.7.5
   @angular-devkit/schematics : 0.7.5
   @angular/cli               : 6.1.5
   @ionic/ng-toolkit          : 1.0.7
   @ionic/schematics-angular  : 1.0.5

System:

   NodeJS : v8.10.0 (/usr/local/bin/node)
   npm    : 6.4.1
   OS     : macOS High Sierra

Describe the Bug
Ion-menu-button doesn't change color when toolbar has color prop set in ios

Steps to Reproduce

1. Start a new project like ionic start myApp sidemenu --type=angular
2. Go to src/app/home/home.page.html and add to the tag ion-toolbar ( line 2 ) the prop color like this: <ion-toolbar color="primary">
3. Load the app in the browser using the mobile emulator for iphone.

Related Code
This is the code for the example project from ionic cli. Just modify the described line.

Expected Behavior
ion-menu-button should be in white color, but it's blue as the toolbar, so you can't see it.

Additional Context
This just happens with iOS. For android this works fine, the ion-menu-button is white and the toolbar is blue.

[ionitron-bot]

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