Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.4)
// Compass (v1.0.1)
// ----

@function map-fetch($map, $keys) {
  $key: nth($keys, 1);
  $length: length($keys);
  $value: map-get($map, $key);
  @if ($length > 1) {
    $rest: ();
    @for $i from 2 through $length {
      $rest: append($rest, nth($keys, $i))
    }
    @return map-fetch($value, $rest)
  } @else {
    @if ($value){    @return $value;}
    @else { @return map-get($default, $key) }

  }
}
$default: (
  colorTitle: #fff
);
$config: (
        themes: (
                Default: (
                        colorMain: #fff
                ),
                Meninger: (
                        colorMain: none,
                        colorTitle: #2e87a7
                ),
                Sport: (
                        colorMain: none
                )
          )
);

@mixin containerTheme($headerBgColor, $headerTextColor: #fff ){
    & {
        .df-container-header {
          color: $headerTextColor; 
        }
    }
}
    
  @each $theme in map-keys(map-get($config, themes)) {
      df-skin-row-#{$theme} {
        @include containerTheme(
                map-fetch($config, themes $theme colorMain),
                map-fetch($config, themes $theme colorTitle)
        );
      }
  }

SassMeister-output.css

df-skin-row-Default .df-container-header {
  color: #fff;
}

df-skin-row-Meninger .df-container-header {
  color: #2e87a7;
}

df-skin-row-Sport .df-container-header {
  color: #fff;
}