title: Wrong synchronization between the labels, the colors and the slices in a pie chart
body: <p>By running this code :</p>
  
  <pre><code>    g &lt;- ggplot(results_table, aes(x = "", y = Pct*100, 
             fill = factor(results_table$Criteria, as.character(results_table$Criteria))),width = 0.5) +
    geom_bar(stat = "identity") +
    scale_color_manual(values = Palcolor) +
    scale_fill_manual(values = Palcolor) +
    coord_polar(theta = "y", start = 0, direction = -1) +
    theme_minimal() + 
    theme(legend.position = "bottom", legend.title=element_blank(), axis.title.x = element_blank(),, 
          axis.title.y = element_blank(), panel.border = element_blank(), panel.grid = element_blank(),
          axis.text = element_blank(), axis.ticks = element_blank(), 
          plot.title = element_text(size = 14, hjust = 0.5, vjust = 0)) + 
    guides(fill = guide_legend(nrow = 4, byrow = TRUE)) + 
    theme(
      legend.key.height = unit(0.3, "lines"), #smaller squares
      legend.key.width = unit(0.7, "lines"), #smaller squares
      legend.margin=margin(l = 40, unit='pt'),
      legend.text = element_text(margin = margin(r = 60,  unit = "pt"))) +
    xlab("") +  
    ylab("") + 
    geom_text(aes(x = 1.70, y =Pct*100/2 + c(0, cumsum(Pct*100)[-length(Pct*100)]),
                  label = paste0(sprintf("%0.1f", round(Pct*100, digits = 1)),"%")),
              size = 3.2) +
    labs(title = gTitle) 
  </code></pre>
  
  <p>}
  I get this pie chart :
  <a href="https://i.stack.imgur.com/aNomJ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/aNomJ.png" alt="enter image description here"></a></p>
  
  <p>As you can see, the slices and the color are right, but the labels are reversed. If I use</p>
  
  <p>position = position_stack (vjust = 0.5, reverse = TRUE)</p>
  
  <p>in geom_text, it reduces the whole  pie to a small slice, then it doesn't fix my issue.</p>