zammad/app/views/knowledge_base/public/_inline_stylesheet.html.erb

<style>
  html {
    direction: <%= locale.dir ;%>
  }

  @font-face {
    font-family: '<%= knowledge_base.iconset %>';
    src: url('/assets/icon-fonts/<%= knowledge_base.iconset %>.woff');
    font-weight: normal;
    font-style: normal;
  }

  [data-font="<%= knowledge_base.iconset %>"] {
    font-family: '<%= knowledge_base.iconset %>';
  }

  a,
  .section-inner [data-font],
  .section-inner .icon,
  .section > a:hover {
    color: <%= knowledge_base.color_highlight %>;
  }

  .tag {
    background: <%= knowledge_base.color_highlight %>;
  }

	.header {
    background-color: <%= knowledge_base.color_header %>;
	}

  .header .menu-item {
    color: <%= knowledge_base.color_header_link %>;
  }
</style>