title: Change Title Slide Color in reval.js R Markdown presentation
body: <p>I am trying to change the color of the title slide of a reveal.js R Markdown presentation. </p>
  
  <p>I am aware that I should use a custom CSS sheet with the <code>css: styles.css</code> option, but I couldn't find any references on how to change the title slide specifically. I am able to change the color of any other slides as <a href="https://rmarkdown.rstudio.com/revealjs_presentation_format#slide_backgrounds" rel="nofollow noreferrer">explained here</a>.</p>
  
  <p>Here is a minimal example:</p>
  
  <pre><code>---
  title: "Habits"
  author: John Doe
  date: March 22, 2005
  output: revealjs::revealjs_presentation
  ---
  
  # Change Background {data-background=#ff0000}
  </code></pre>