Can remove the background color of the picture with JSL?

[#1]

dt = Open( "$SAMPLE_DATA/Big Class.jmp" );
p1 = dt << Graph Builder(
	Size( 528, 456 ),
	Show Control Panel( 0 ),
	Variables( X( :weight ), Y( :height ), Color( :sex ) ),
	Elements( Bar( X, Y, Legend( 5 ), Response Axis( "X" ) ) )
);

Thanks!

[#2]

to

[#3]

[#4]

You might have to enable this setting from preferences (Transparent background for report PNG images)

[#5]

I fear that enabling "Transparent background" in the Preferences just removes the background surrounding the Graph region.

There is a wish by @Craige_Hales to remove the background of the graph as well:
Transparent background color for graphs 

[#6]

I saw this post earlier.I was wondering if JMP would not be required to directly generate a transparent background image, but JSL could remove the white from ordinary images, just like Photoshop.

Thanks!