The Expression Blend Properties Inspector is something you become introduced to very quickly. It is the giant panel usually on the right-hand side of the Blend interface that you use to view and set values on properties:
[ I, for one, welcome our new Properties Inspector overlord ]
The Properties Inspector is fairly intelligent. It exposes any properties your selected item or items exhibit, and for each property, it uses a value picker appropriate for the type of property it is dealing with. If you took a snapshot of any particular area of the Properties Inspector, you’ll see a variety of value pickers in play:
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