Merge pull request #13 from atcurtis/11-colour

More configurable colour

Merge pull request #9 from atcurtis/8-fix-mixmax-values-for-linefille…

…d-graph

Fix min/max for line/filled graph

Merge pull request #7 from atcurtis/6-filled-graph-mode

Add option for filled graph

Merge pull request #5 from atcurtis/3-dial-graph-temperature

Add user-specified min/max values

Fix property inspector

broken when changing from old api to new api.