I would like to suggest the following improvement:

• It would be nice to be able to change the legend type, text, position, etc in all graphs, including some "default value" for the "Latest Data" graphs;
• In graphs with many items, the legend text in the bottom is very long;
• It would be good to remove the {HOSTNAME]}

  from each item in the text legend in the bottom: that is repeated information!! Only bothers the reader;

• I would like to remove the right side legend ("Values") and see the values instead after each item name ONLY