Horror flix settings.

Effect
Colors eg r#g or FF00FF#0000FF
Horizontal offset % (-100 to +100)
Vertical offset % (-100 to +100)
Scale % (1-1000)
Background
Option (see wiki)

The more powers your group has assigned the more effects are available, 1 power for Skeleton, 2 powers for Eyes, 4 powers for Cauldron etc.
Flix Eyes has 4 possible options for different eyes: 0-3.
Set the Option to 1 in Flix Halloween to turn off the pumpkin

Color code picker