Feature: Control marker clipping for point pattern fills
This new option gives you control over how markers are clipped in a point pattern fill. The available options include:
Clip to shape: markers will be clipped by the boundary of the shape, so "cut off" markers may be visible (same behaviour as previous QGIS versions)
Marker centroid within shape: markers will be drawn only if their centroid falls within the shape, and markers will not be clipped to the shape boundary
Marker Completely Within Shape: markers will only be drawn if they fit completely within the shape
No clipping: whole marker symbols will be drawn if any part of the marker falls within the shape