How to increase the font size of label names
<p>I want to increase the font size of label names. I tried with <code>geom_label_repel(aes(label = names, label.size = 5), box.padding = unit(0.5, "lines"))</code> . But the size doesn't affect the labels.</p>

<pre><code>ggplot(df, aes(x,y,label=names)) +
  geom_point(colour = "red", size = 3) +
  geom_smooth(method=lm, se=FALSE, colour = "blue") +
  geom_label_repel(aes(label = names, label.size = 5),
                   box.padding = unit(0.5, "lines")) +
  xlim(0,2.5) +
  ylim(0,2.5) +
  theme( plot.title=element_text(size=16,face="bold"),
         axis.text=element_text(size=18),
         axis.title=element_text(size=20,face="bold"))
</code></pre>