<html lang="en">

<head>
  <link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/angular_material/1.1.0-rc2/angular-material.min.css">
  <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
  <link rel="stylesheet" type="text/css" href="style/template.css">

  <script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.5.3/angular.min.js"></script>

  <script src="js/app.js"></script>
</head>

<body ng-app="SigmaApp" ng-controller="SigmaController as sigma" ng-cloak>

  <md-toolbar class="md-toolbar-tools">

    <md-button class="md-icon-button" aria-label="Menu" ng-href="/">
      <img src="img/sigma-white.png" alt="Logo" style="width:20px;height:25px;">
    </md-button>

    <md-button aria-label="Sigma" ng-href="/">
      SIGMA
    </md-button>

    <span flex></span>

    <div ng-repeat="page in pages">
      <md-button md-no-ink class="underline" aria-label={{ page }} ng-href="{{ '/' + page }}">
        {{ page }}
      </md-button>
    </div>

  </md-toolbar>

</body>

</html>

<html lang="en">

<head>
  <link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/angular_material/1.1.0-rc2/angular-material.min.css">
  <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
  <link rel="stylesheet" type="text/css" href="style/template.css">

  <script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.5.3/angular.min.js"></script>

  <script src="js/app.js"></script>
</head>

<body ng-app="SigmaApp" ng-controller="SigmaController as sigma" ng-cloak>

  <md-toolbar class="md-toolbar-tools">

    <md-button class="md-icon-button" aria-label="Menu" ng-href="/">
      <img src="img/sigma-white.png" alt="Logo" style="width:20px;height:25px;">
    </md-button>

    <md-button md-no-ink aria-label="Sigma" ng-href="/">
      SIGMA
    </md-button>

    <span flex></span>

    <div ng-repeat="page in pages">
      <md-button md-no-ink class="underline" aria-label={{ page }} ng-href="{{ '/' + page }}">
        {{ page }}
      </md-button>
    </div>

  </md-toolbar>

</body>

</html>

Add no-ink to Sigma text
Add no-ink to Sigma text
