The thumbnail object defines the visualization of a selected analysis step in the analysis path display of the UI. It has the following format:
{
"type" : "thumbnail", // optional
"leftUpper" : <label>,
"leftLower" : <label>,
"rightUpper" : <label>,
"rightLower" : <label>
}
The labels define the text that is displayed in the four corners of the thumbnail. All properties of the thumbnail object are optional.