How do I get a gradient background in graph builder

[#1]

I want to create a scatter plot with 9 squares that looks like a McKinsey GE matrix, and plot data points in those squares. If the bottom left equals the lowest values and top right the highest value, I would like to have a gradient diagonal background, starting with red in the lower left corner and green in the top right with a yellow band in the middle (see attached jpg). In excel I can do this in a scatter plot. How do I create this background in graph builder?

[#2]

I was able to add the gradient as a background image, and then overlayed data on top of it.  I am using the .jpg that you supplied.  You would need to create a separate image.  I believe that it could be build using a graph box() in JMP.

Here is the JSL

Names Default To Here( 1 );
dt = New Table( "example",
	Add Rows( 7 ),
	New Column( "x",
		Numeric,
		"Continuous",
		Format( "Best", 12 ),
		Set Values( [0.655, 0.655, 0.655, 1.69, 1.69, 2.715, 2.715] ),
		Set Display Width( 38 )
	),
	New Column( "y",
		Numeric,
		"Continuous",
		Format( "Best", 12 ),
		Set Values( [9.65, 5.6, 1.52, 5.6, 1.52, 5.6, 1.52] ),
		Set Display Width( 72 )
	),
	New Column( "size",
		Numeric,
		"Continuous",
		Format( "Best", 12 ),
		Set Values( [20, 20, 20, 20, 20, 20, 20] )
	),
	Set Row States( [8192, 8384, 8384, 8384, 8384, 8384, 8384] )
);

op = Graph Builder(
	Size( 1120, 456 ),
	Show Control Panel( 0 ),
	Variables( X( :x ), Y( :y ), Size( :size ) ),
	Elements( Points( X, Y, Legend( 7 ) ) ),
	SendToReport(
		Dispatch( {}, "x", ScaleBox, {Min( 0.15 ), Max( 3.2 ), Inc( 0.5 ), Minor Ticks( 1 )} ),
		Dispatch(
			{},
			"y",
			ScaleBox,
			{Min( -0.635918367346939 ), Max( 11.6721345272803 ), Inc( 2 ), Minor Ticks( 1 )}
		),
		Dispatch( {}, "400", LegendBox, {Legend Position( {7, [-1, -1]} )} )
	)
);
opr1 = op << report;
opr2 = opr1 << Clone Box;
opr1 << append( opr2 );
fb1 = opr1[Frame Box( 1 )];
fb1 << Add Image(
	Open( Convert File Path( "<path to the image>.jpg" ) ),
	Transparency( 0.9 ),
	Bounds(
		Left( 0.135416666666667 ),
		Right( 3.26041666666667 ),
		Top( 11.8333333333333 ),
		Bottom( -1 )
	),
	SetSize( {300, 210} )
);
fb1 << Copy Picture;
fb2 = opr2[Frame Box( 1 )];
fb2 << Paste Background Image;

[#3]

Thanks Jim,

Apparently a bit more complex than excel.

Marc