Review 1 fixes for 13.9a and 13.9b: the rounded move, effects while moving and dragging a gradient, a draft in a clipping stack pinned; stale Soft Light, nine-mode and 12.7a lines corrected

src/Rendering/HslBlend.h

@@ -2,7 +2,7 @@
 #include "Document/LayerAppearance.h"
 #include <QImage>
 
-// Blend modes QPainter lacks: the four non-separable, SeparableBlend's eight.
+// Modes QPainter lacks: four non-separable, SeparableBlend's nine.
 namespace HslBlend {
 bool handles(LayerBlendMode mode);
 // Source over backdrop, same size, both RGBA8888 premultiplied.