[reportlab-users] Color of grid lines

[Florian Reiser]

Hello,

when I set
chart.background = colors.white
and
chart.categoryAxis.gridStrokeColor = colors.black,

then the grid of the categoryAxis appears to be grey when
rendered with renderPM (format='PNG')

When I render it as PDF, then everything is fine.

How can I get the grid in pure black?

With kind regards
Florian Reiser