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Dynamic-backgrounds.scss

// ----
// Sass (v3.4.12)
// Compass (v1.0.3)
// ----

$features: (
  forest: ('leafy', 'resinous', 'mixed', 'unworkable'),
  culture: ('agroforestry', 'field', 'orchad', 'prairie'),
  road: ('road', 'firewall', 'firewall2'),
  water: ('water', 'pond', 'watercourse'),
  housing: ('default')
);

@each $feature, $item in $features {
 .panel-default .panel-heading {
    &.panel-heading-#{$feature} {
      background: url("/images/icons/#{$feature}.png") no-repeat scroll left center / 15% auto red;
    }
  }
  @each $i in $item {
    .panel-default .panel-collapse {
      li[class$="#{$i}"] {;
        background: url("/images/icons/#{$feature}_#{$i}.png") no-repeat scroll left center / 15% auto red;
      }
    } 
  }
}