title: XAML property values: default vs local vs ambient
body: <p>I've been trying to interpret the XAML code in a project I've inherited and I want to figure out where some of the values are coming from in certain elements. When I look at an object's properties in the Properties panel, I can see squares next to each property. A white square indicates that the property value is the default, a black square indicates that the property value is "local" meaning it has been changed from the default and that change can be seen in the XAML tag, and a green square means "ambient."</p>
  
  <p>There are styles applied to the objects so I can sort of intuit that the values in ambient properties must come from resource dictionaries. I'm still unsure where to look for the source of the values, which I want to do in order to change them. The <a href="https://msdn.microsoft.com/en-us/library/system.xaml.ambientpropertyvalue(v=vs.110).aspx" rel="nofollow noreferrer">documentation</a> for ambient properties is hard for me to follow and doesn't answer all my questions, and I haven't found any documentation discussing the differences between default, local, and ambient.</p>
  
  <p>If this is an appropriate place to ask, can someone explain and discuss the differences between default, local, and ambient?</p>
  
  <p>Is there a word used to distinguish between these types of property values, i.e. is "default" a property value "type" or what?</p>
  
  <p>And are there any property value types beyond those three?</p>