message: Change colors to have more contrast
diff: $view-margin: 20px;
  -$border-color: #363636;
  +$border-color: #404040;
  -$button-active-color: linear-gradient(hsl(0, 0%, 5%) 0%, hsl(0, 0%, 8%) 100%);
  +$button-active-color: linear-gradient(hsl(0, 0%, 13%) 0%, hsl(0, 0%, 23%) 100%);
  $button-color: linear-gradient(hsl(0, 0%, 11%) 0%, hsl(0, 0%, 7%) 100%);
  $button-disabled-color: #222;
  $button-disabled-text-color: #666;
  