title: How can I plotly a ggplot treemap?
body: <p>I am looking to get this gradient colors on the map: </p>
  
  <pre><code>ramp &lt;- colorRamp(c("royalblue4", "white"))
  ramp.list &lt;- rgb( ramp(seq(0, 1, length = 15)), max = 255)
  </code></pre>
  
  <p>But also, and more important, I am looking to add plotly charactheristics to the graph (specially hovering text output). This is my data:</p>
  
  <pre><code>structure(list(V1 = structure(c(9L, 8L, 4L, 7L, 2L, 6L, 1L, 3L, 
  5L, 10L, 13L, 11L, 12L), .Label = c("Apple", "Avocado", "Banana", 
  "Carrot", "Mango", "Mushroom", "Onion", "Orange", "Pineapple", 
  "Strawberry", "Sweet-lemon", "Watermelon", "Wildberry"), class = "factor"), 
      V2 = structure(c(4L, 3L, 9L, 11L, 12L, 2L, 1L, 6L, 10L, 5L, 
      7L, 8L, 1L), .Label = c("23", "24", "36", "42", "43", "46", 
      "48", "52", "56", "61", "82", "94"), class = "factor")), class = "data.frame", row.names = c(NA, 
  -13L))
  </code></pre>
  
  <p>And this is what I've tried:</p>
  
  <pre><code>library(ggplot2)
  library(plotly)
  
  ramp &lt;- colorRamp(c("royalblue4", "white"))
  ramp.list &lt;- rgb( ramp(seq(0, 1, length = 15)), max = 255)
  g &lt;- ggplot(dtd7, aes(area = n, fill = topic, label = as.character(topic))) +
    geom_treemap()+
    geom_treemap_text(fontface = "italic", colour = "white", place = "centre")  +
    theme(legend.position = "none") 
  
  ggplotly(p)
  </code></pre>