Bezier handle visibility

A lot of times when I am creating a mask with the poly tool, I have a hard time seeing the bezier control handles. I end up zooming WAY in and or inverting the mask to try and find them when I have a specific point selected. Is there a better way to make them more visible?

You could try using the Gain/Gamma controls accessed from the three dots on the top right of the viewer. You could also try switching the viewer to R,G or B using the symbol to the right of the Venn Diagram like symbol, also above the viewer. You can also right click in the viewer and probably the bottom option choose Polyline - Draw Style - Custom Spline Colour and that will let you do just that. There are sure to be other options I don't know about.