Setup node symbols: 4 symbol parts are clipped after zoom

[herzbube]

Setup node symbols consist of 4 symbol parts surrounded by a circle, each. When the node tree view is zoomed in the circles around the 4 parts are clipped.

The involved code is in NodeTreeViewDrawingHelper, the functions are:

• DrawNodeTreeViewCellSymbolSetup (main function)
• DrawNodeTreeViewCellSymbolSetupCircleStyle (child function)

This has super-low priority because 1) the user will rarely get to see the issue; and 2) the symbol meaning is still clear despite the clipping.