title: Can I adjust the lower limit of scale_color_brewer?
body: <p>I have ordered categorical data that I would like to use color brewer on. But I have a hard time seeing the very light lower values. Is there a way to either trim off those lower values or set the lower limit in the scale?</p>
  
  <pre><code>ggplot(data.frame(x=1:6, y=10:15, w=letters[1:6]), aes(x, y, color=w)) + 
  geom_point()+ scale_color_brewer(type="seq", palette=1) + theme_bw()
  </code></pre>
  
  <p>Is there a better way to do this? So far I either see qualitative scales that aren't ordered or continuous scales that don't like being applied to discrete data. I'm aware of manual scales if that's the only route.</p>