Hi folks.

I like the new Thermostat Mode and Thermostat Fan Mode device images included with Indigo 5.1.1. However, it appears that if the Venstar thermostat is in any of the program modes (program heat on, program cool on, or program auto on), there is no matching Thermostat Mode image for that mode. In fact, Indigo seems to be replacing the "+<mode>.png" portion of the image URL with just "+on.png", to which there is no corresponding image file. I've resolved this by duplicating the "Thermostat Mode+auto on.png" file, renaming it "Thermostat Mode+on.png" but thought you all should be aware of the issue.

On a related note, are there plans to add GUI control elements (other than trigger conditions and actions) to change the thermostat into any of the Program modes (program heat, program cool, program auto)?

Yep that's correct - the image sets don't work with program mode.

No, no plans at the moment to add program mode given the relatively uselessness of those features when Indigo is controlling the thermostat.