Product Structure Specification Tree Icons

Products, Parts and Components Icons
Product1 A product. For more information, refer to Insert a New Product in Product Structure User's Guide.
Product2 A component or sub-product. For more information, refer to Insert a New Component in Product Structure User's Guide.
Flexible_product The purple little wheel to the left corner of the CATProduct icon and the light bar identify a flexible sub-assembly. For more information, refer to Soft Sub-Assemblies in Product Structure User's Guide.
Part.1 Instance of a Product / Instance of a Part. This symbol means that there is a geometrical representation of the part / product and that is activated.
 

Part_with_DeactivatedRepresentation

 The representation of this part is deactivated. This symbol means the geometric representation is deactivated. Before opening a document, you choose the activate or deactivate Shape representation in Tools->Options->Infrastructure, select the Product Structure tab and check the box entitled Do not activate default shapes on open.
For a particular instance in the document, you can deactivate or activate it by selecting the Representations -> Deactivate Node / Activate Node contextual commands.
Component_with_DeactivatedRepresentation The representation of this component is deactivated.
Part1 Reference of a part. For more information, refer to Insert a New Part in Product Structure User's Guide.
 

Deactivated_Component

 A deactivated component. The shape representation is deactivated; its geometry is not visible. This functionality can occur simultaneously on several documents containing this component, especially when this component is the instance of a reference. This operation is equivalent to the Delete operation because the reference of the component no longer exists within the Bill Of Material.
Deactivated_Product A deactivated product.
Unloaded_Product The geometry  of the component disappears. The product is downloaded, its references are missing but the user is able to find them back.

Contextual Parts
For contextual parts, the reference keeps a link with the Original or Definition Instance (or Original Part).

For each parts, every instance keeps a link with its reference. But the Contextual Reference (or Contextual Part) has only one link, with a single instance which is contextual. This unique link allows you to know the name of the document (CATProduct) on which the part 's external geometry rests.

There is a distinction between the Original Instance and the subsequent Contextual References because the geometrical definition of contextual Parts depends on neighboring components (support) in the Assembly. The Geometry of the Contextual Part depends on another instance in the same Assembly (second link).

Three Instances of Contextual Part exist:
_  Definition Instance This icon shows that the Part Reference is contextual and this Instance is the Definition Instance. The green gear and the blue chain signify the "original" instance of a part that is contextual (driven by another part, built with another part's data) in a CATProduct.
_ Instance of the Definition Instance This contextual part, represented by the white gear and the green arrow, is an Instance of the Definition Instance, coming from the Contextual Part. The geometry of this instance is connected with the Definition Instance (contextual link). Note that you can edit this contextual part.
 

_ Other Instance of the Contextual Part

 The brown gear and the red flash signify that the Part reference is contextual and that this instance is not used in the Part Definition. Note that you can edit this Contextual Part. This symbol can appear when you copy / paste or insert a Contextual Part into another CATProduct without taking into account the contextual links.

In this case the user needs to resort to the "Define Contextual Links" or "Isolate Part" commands in order to redefine the context of the Part and this red flash will be turned into a blue chain or green arrow.

For more information, please read the following scenarios: Defining Contextual Links: Editing and Replacing Commands, and Isolating a Part in the Product Structure User's Guide.