title: Change breadcrumb colors bootstrap-vue
body: <p>I'd like to use bootstrap-vue breadcrumbs, but they seem to have built in background and text colors.   I've tried many combinations of classes and styles in the breadcrumb and breadcrumb-item tags, but with no effect.  The following always produces blue or grey text on a light grey background.</p>
  
  <pre><code>  &lt;b-breadcrumb style="nothing works" :items="crumbs"&gt;
      &lt;b-breadcrumb-item class="nothing works" v-for="(item, i) in crumbs" :key="i" :to="item.to"&gt;{{item.text}}&lt;/b-breadcrumb-item&gt;
    &lt;/b-breadcrumb&gt;
  </code></pre>
  
  <p>I don't know css too well, but I suspect there's a selector that knows how to reach inside of the generated html to fix style.</p>