title: Customizing emmeans plot
body: <p>I'm using <code>emmeans</code> and would like to learn how to customize plots. </p>
  
  <p>For a reproducible example, I'm using <code>warpbreaks</code> data.</p>
  
  <pre><code>library(emmeans)
  lm &lt;- lm(breaks ~ wool * tension, data = warpbreaks)
  emm &lt;- emmeans(lm, ~ wool | tension)
  plot &lt;- plot(emm, horizontal=FALSE, comparisons=TRUE) + theme_bw()
  plot
  </code></pre>
  
  <p>Instead of the default purple color, I'd like to customize confidence interval color by group, such that all six groups (L-A, L-B, M-A, M-B, H-A, H-B) would have confidence intervals in different colors. I'd also like to customize the shape of estimated means, instead of having them all as black dots. </p>
  
  <p>Here's what I tried, but it didn't work.</p>
  
  <pre><code>plot + 
  scale_color_manual(values=c("#F8766D", "#B79F00", "#00BA38", "#00BFC4", "#619CFF", "#F564E3")) + 
  scale_shape_manual(values=c(1,2,3,4,5,6))
  </code></pre>
  
  <p>Any help would be appreciated!</p>