DiagramTypeLink, DiagramTypeLinkStyle, DiagramTypePath.

(Cross), (Crowfoot), (CrowfootDot), (CrowfootPlus), (Diamond), (DiamondDot), (DiamondFill), (DotFillOpen), (DotOpen), (DotPlus), (DotSimpleFill), (HalfArrow), (LineDot), (LineDotFill), (LineSemicircleIn), None (None), (ObliqueLine), (OpenArrow), (OpenArrow2Way), (OpenArrowX2), (OpenArrowX2Plus), (Oval), (OvalFill), (OvalPlus), (Plus), (PlusDot), (PlusOpen), (PlusX2), (SemicircleIn), (SemicircleOut), (SimpleArrow), (SimpleArrowFill), (SimpleArrowFillX2), (SimpleArrowFillX3), (SimpleArrowInvert), (SimpleArrowInvertFill), (SimpleArrowX2), (SimpleArrowX3), (Square), (SquareFill), (StealthArrow), (StealthArrowFill), (TriangleArrow).