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The <guilabel>Ringschart</guilabel> is composed of a set of nested rings around a central circle. This circle symbolizes the root folder of the partial tree (that is, the folder that the user has selected for scanning). Each ring represents a level in the partial tree, so i.e. the subfolders of the root folder will be represented in the first ring, and deeper levels in the tree correspond to outer rings in the chart. Each subfolder is represented by a sector of the ring, its angle being proportional to the size of the folder's contents, and painted with a different color to ease visualization. Up to five levels can be drawn; in case that a folder in that last fifth level contains even more subfolders, this situation will be pointed by the presence of a black curve close to the edge of that folder's ring sector. When a folder with no further subfolders is selected to be the root of the partial tree, only the inner circle will be drawn. When the mouse pointer hovers one of the folders in the graphic, it will be highlighted and a tooltip will appears with information about its name and size. If there are any subfolders, small grey tooltips will appear, indicating their names. It's possible that not all of the subfolders' names are displayed, to avoid overlappings.
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