[Dvipng] Question: How to change the background color.

[Zhang]

I write document in word, using "aurora" to typeset the "formula".
"aurora" invoke the latex.exe, dvipng.exe to generate the embeded graph into word.

the background of graph is "white".
I wonder whether dvipng can change the background color or it should be set in my tex code.

OS: windows xp sp2

 

 

 

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