[l2h] Background colour of images and image sizing.

[Chittaranjan Mandal]

I use a background colour for my browser (grey) that overrides the
document background colour.
By default latex2html generates images with white background colour,
which standout on my browser page.
Is is possible to make latex2html generate images with no background
colour (transparent)?

Also, is there a way to size images according to the font size of the
browser?
I use a large font size, overriding the document supplied font size.

-- Chitta