message: Change active button color to be more obviously different
diff: @@ -2,7 +2,7 @@ $view-margin: 20px;
  $border-color: #363636;
  -$button-active-color: linear-gradient(hsl(0, 0%, 7%) 0%, hsl(0, 0%, 14%) 100%);
  +$button-active-color: linear-gradient(hsl(0, 0%, 5%) 0%, hsl(0, 0%, 8%) 100%);
  $button-color: linear-gradient(hsl(0, 0%, 11%) 0%, hsl(0, 0%, 7%) 100%);
  $button-disabled-color: #222;
  $button-disabled-text-color: #666;
  