SD2 Butterfly bomb HE fill query

[SG500]

I'm in the process of cutting an SD2 butterfly bomb and want to include some replica filling to look like the real HE fill that would have originally been in there.
Does anyone know what the colour of the original HE fill was?
Dave.

 

[APFSDST]

I know filled with TNT.
The TNT's color is yellow/butter-yellow.

 

[SG500]

Thanks APFSDST.

Dave.

 

[APFSDST]

I found a good picture whereat you can see the TNT's color:

 

[SG500]

That's perfect, thanks APFSDST.
Dave.