The vector stencils library "Progressive disclosure controls" contains 12 icons of Windows 8 progressive disclosure controls.
Use it to design graphic user interface (GUI) prototypes of your software applications for Windows 8.
"With a progressive disclosure control, users can show or hide additional information including data, options, or commands. Progressive disclosure promotes simplicity by focusing on the essential, yet revealing additional detail as needed. ...
Chevrons show or hide the remaining items in completely or partially hidden content. Usually the items are shown in place, but they can also be shown in a pop-up menu. When in place, the item stays expanded until the user collapses it. ...
Arrows show a pop-up command menu. The item stays expanded until the user makes a selection or clicks anywhere.
If the arrow button is an independent control, it receives input focus and is activated with the space bar. If the arrow button has a parent control, the parent receives input focus and the arrow is activated with Alt+down arrow and Alt+up arrow keys, as with the drop-down list control. ...
Plus and minus controls expand or collapse to show container content in place when navigating through a hierarchy. The item stays expanded until the user collapses it. Although these look like buttons, their behavior is in-place.
The associated object receives input focus. The plus is activated with the right arrow key, and the minus with the left arrow key. ...
Rotating triangles show or hide additional information in place for an individual item. They are also used to expand containers. The item stays expanded until the user collapses it.
The associated object receives input focus. The collapsed (right-pointing) triangle is activated with the right arrow key, and the expanded (downward-pointing) triangle with the left arrow key. ...
Like chevrons, additional information is shown or hidden in place. The item stays expanded until the user collapses it. Unlike chevrons, the glyphs have a graphical representation of the action, typically with an arrow indicating what will happen. ... Preview arrows are best reserved for situations where a standard chevron doesn't adequately communicate the control's behavior, such as when the disclosure is complex or there is more than one type of disclosure." [msdn.microsoft.com/en-us/library/windows/desktop/dn742409%28v=vs.85%29.aspx]
The icons example "Progressive disclosure controls - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Windows 8 User Interface solution from the Software Development area of ConceptDraw Solution Park.