Set here global cell parameters, applied automatically to all current
and future cells to change their visual properties.
Axes
Axes size sets the thicknness of the cell axes, when users
choose to set them visible. Accepted values are between 
0.01 and 
0.10.
This parameter is global: all cells in GAMGI have the same 
Axes size.
Borders
Axes width sets the thicknness of the cell borders lines, when users
choose to set them visible (the default). Accepted values are between 
1 and 
10.
This parameter is global: all cells in GAMGI have the same 
Borders width.
Nodes
Nodes sets the thicknness of the cell nodes, when users
choose to set them visible (the default). Accepted values are between 
1
and 
10.
This parameter is global: all cells in GAMGI have the same 
Nodes width.