When View Vector Colors is on, vectors are displayed in their actual colors.

When View Vector Colors is off, vectors are displayed by type:

Continuous lines are displayed in red.

Arrow lines are displayed in gray.

Dash and dash dot lines are displayed in black.

Hatch lines are displayed in brown.

Polylines are displayed in green.

Line elements within polylines are displayed in pale green.

Arc elements within polylines are displayed in dark green.

Polygons are displayed in green.

Circles are displayed in dark blue.

Arcs are displayed in magenta.

Bezier curves are displayed in light blue.

Text is displayed in magenta.

Solid Polygon and Circle fills are displayed in green

Solid PolyBezier fills are displayed in pale blue

Solid PolyPolygon fills are displayed in pale blue/green

You can toggle View Vector Colors on and off in either of the following ways:

Press the C key.

Select View Menu > View Vector Colors.

When you load PDF vectors into Scan2CAD, View Vector Colors is always on.

After a vectorization, View Vector Colors is always off.