Change here the visual representation for a single layer or a list of layers.
To modify a layer, click over the graphic area to open a menu and choose a layer,
or write its identification (name and number) on the 
Layer entry. To modify
a list of layers, press the button 
List (after creating the list of layers
with 
Layer->Select). Parameters for empty entries or 
Local choices
remain unchanged.
To change a layer name write the new name in the 
Layer entry,
followed by the layer number (GAMGI needs the number to identify the layer).
To change the name for a list of layers, press 
List first
and then write the new common name in the 
Name entry.
R, G, B
The 
R, 
G, 
B entries define the color of the layer 
background, from black (0.0, 0.0, 0.0) to white (1.0, 1.0, 1.0). When
multiple layers are visible, GAMGI always shows the background color 
of the current layer.
Axes
To show the layer referential axes, set the 
Axes option to 
Yes.
The three axes use the rgb color scheme: red for the first axis, green
for the second and blue for the third.
Scale
Change the size of everything contained in the layer, except lights.
Layer objects are scaled around the layer center, defined by the 
Center parameter.
The visual representation of an object is always scaled by its own 
scale factor multiplied by the scale factor of all its parent objects 
until layer, inclusive.