UPDATE
Posted version 1.3.0, changelog in first post.
A little extra info on the new Brightness Correction setting (defaults to off, enable the setting to try it). The LED bulbs I have the useable dimming range is between about 20-70%, anything below is off and above is full bright (to my eyes). It was annoying me that when maxed out to my max setting it would show 70% on the dashboard. So I worked out a little formula to convert back and forth between the set level and the displayed level. If you enable to the new setting and have a min/max set it will do the conversion automatically. Example, min=20 and max=60: normally if you set 50%, the dimmer gets set to 50%, which is very close to the max, so probably almost fully bright. With this new setting the formula converts your setting of 50%, and actually sets the dimmer to 40% which is halfway between the min and max.
//This converts what the user selected into a physical level within the min/max range
level_dimmer = ((brightmax - brightmin) * (level_displayed/100)) + brightmin
//This takes the true physical level and converts to what we want to show to the user
level_displayed = ((level_dimmer - brightmin) / (brightmax - brightmin)) * 100
You can check the event logs to see the displayed level vs the actual level being set
