Image.
Decal image and mask files (see below).The Decal PropertyManager controls the properties of a decal on these tabs:
Image.
Decal image and mask files (see below).
Mapping.
Geometry, Mapping, Size/Orientation, Rendering.
Illumination.
Decal's response to illumination.
The decal is displayed in the window.
Image file path 
. The image file path is displayed. Click Browse
to choose another path and file.
Save Decal. Click to save the current decal and its properties to file.
Choose one for the type of mask image:
No mask.
Image mask file.
The decal is displayed where the mask is white and blocked where the mask
is black. 
Selective color mask. The decal is the selected decal minus colors that you choose to exclude.
To create a selective color mask:
Click Pick Color
.
With the pointer 
, select a color
in the Decal Preview.
Items of the selected color are removed from the Decal Preview and the color appears in Selected Colors.
To restore the color to the decal, choose the color in Selected Colors and click Remove Color.
Invert mask. The regions of the decal previously masked are displayed, and vice versa.
Mask file path 
. The mask file path is displayed. Click Browse
to choose another path and file.