title: How to change color scheme in corrplot
body: <p>I am using <code>corrplot</code> in R to visualise a correlation-coefficient matrix as follows.</p>
  
  <pre><code>library(corrplot) 
  library(datasets)
  corrplot(abs(cor(mtcars)), method="color", tl.pos="n", cl.lim = c(0,1))
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/UuHga.png" alt="enter image description here"></p>
  
  <p>The default colour scheme is <strong><em>blue</em></strong>-based. However, I would like to change it to <strong><em>red</em></strong>-based. I know I need to use <code>colorRampPalette</code> to specify colours I want. However, I could not figure out what colour codes to use. Could anyone help me with this, please?</p>
  
  <p>Thank you!</p>