My Atom editor styles.less

styles.less

.btn {
  background-image: linear-gradient(#537178, #537178);
  box-shadow:0px px 0px 0px rgba(255,254,255,0.60), inset 0px 0px 0px 1px rgba(255,254,255,0.50);
  color: #BDD6DB;
}

.tree-view {
  .entry.directory.status-modified > .header,
  .entry.file.status-modified {
    color: orange;
  }
  .entry.directory.status-added,
  .entry.file.status-added {
    color: green;
  }
  .entry.directory.status-ignored,
  .entry.file.status-ignored {
    color: #537178;
  }
  .status-added:after,
  .status-modified:after {
    font-family:"Octicons Regular";
    font-size:14px;
    line-height:1;
    content:'\f06b';
    position:absolute;
    color:rgba(0,0,0,0.2);
    right:12px;
    margin-top:6px;
    -webkit-font-smoothing:antialiased;
    text-shadow:rgba(255,255,255,0.6) 0 1px;
  }
  .expanded.new:before,
  .expanded.modified:before {
    display:none;
  }

  .status-modified:after {
    content:"\f06d";
  }

  .collapsed.status-added:after,
  .collapsed.status-modified:after {
    margin-top:-17px;
  }

  .expanded.status-added:after,
  .expanded.status-modified:after {
    display:none;
  }

}

.editor {
  .wrap-guide {
    background-color: #537178;
  }
  .selection .region {
    background-color: #2D8DA1;
    color: #FFFFFF;
    opacity: 0.5;
  }
}

.editor .cursor {

}

Use with the Iceberg theme from https://github.com/daylerees/colour-schemes