The tyIcon helper can be used by various tyFlow operators to control the position or direction of particles.
Logo size: controls the size of the tyIcon logo in the viewport.
Icon type: controls the icon shape type.
Length/Diameter: controls the length or diameter of the icon, depending on the icon shape type.
Width: controls the width of the icon, depending on the icon shape type.
Height: controls the height of the icon, depending on the icon shape type.
Show logo/icon: controls which aspect of the icon are drawn in the viewport.