title: shinydashboard some Font Awesome Icons Not Working
body: <p>When using <code>shinydashboard</code> I find that some icons seem to work while some don't. In the below example, the battery-full icon doesn't work while the clock-o icon works fine. I'm unable to figure out why this should happen.</p>
  
  <pre><code>library(shiny)
  library(shinydashboard)
  
  header &lt;- dashboardHeader(title="Some Icons Not Working?")
  
  # No sidebar --------------------------------------------------------------
  
  sm &lt;- sidebarMenu(
  
    sm &lt;- sidebarMenu(
      menuItem(
        text="asdf",
        tabName="asdfasdf",
        icon=icon("battery-full")),
      menuItem(
        text="qwer",
        tabName="qwerqwer",
        icon=icon("clock-o"))
    )
  )
  
  sidebar &lt;- dashboardSidebar(sm)
  
  # Compose dashboard body --------------------------------------------------
  
  body &lt;- dashboardBody(
  
    tabItems(
  
    )
  )
  
  # Setup Shiny app UI components -------------------------------------------
  
  ui &lt;- dashboardPage(header, sidebar, body, skin="black")
  
  # Setup Shiny app back-end components -------------------------------------
  
  server &lt;- function(input, output) {
  
  
  }
  
  # Render Shiny app --------------------------------------------------------
  
  shinyApp(ui, server)
  </code></pre>