WISH: windy-sounding legend

[Koli14]

I wish to have a legend about the colored lines in the flyXC sounding windy plugin, like:

• The blue line shows the dewpoint,
• The red line shows air temperature,
• The green line shows the temperature of an ascending parcel,
• The hatched area across the graph shows the convective layer (cumulus clouds),
• The left area shows clouds (excluding cumulus),
• The top-most area show upper level clouds (i.e. up to ~15km),

There is plenty empty space if you are checking the sounding on a desktop from a browser.