* it is adjusted to 'fill' `mark_style` (SublimeLinter setting) by default
  It makes warning and errors to appear as orange and red text on regular
  background, so it contradicts to 'fill' style, but this effect is possible
  only on 'fill' style.
* if you use other than 'fill' `mark_style` comment out two lines labeled as
  "for 'fill' style:" (at the end of the toned.tmTheme file)
  ```
  <!-- for 'fill' style: (comment out if you are use other style) -->
  <key>background</key>
  <string>#D4D2CA</string>
  ```