title: Overlay Static Images on R Leaflet htmlwidget
body: <p>It it possible to overlay an image to R leaflet maps - or perhaps in the leaflet html - that would stay fixed overtop the map itself? </p>
  
  <p>That is, the image wouldn't be rendered on the map itself, but fixed in the viewport of the browser, so that when you pan or zoom, it would stay the same size in the same position.</p>
  
  <p>For example, I would want to overlay <a href="https://www.r-project.org/logo/Rlogo.svg" rel="nofollow noreferrer">this image</a>, fixed to the top-left of a map rendered with the following R code:</p>
  
  <pre><code>library(htmlwidgets)
  library(leaflet)
  
  m &lt;- leaflet() %&gt;%
    addTiles() %&gt;%
    addMarkers(lng=174.768, lat=-36.852, popup="The birthplace of R")
  
  saveWidget(m, file = "m.html", selfcontained = F)
  </code></pre>