Oxide linux shows different imagesNot An Issue

hi, i have two servers, windows and linux. Windows for test and linux for the community. They are identical plugins etc. The only difference is the oxide. Attached comparison images of the problem.
oxide linux  oxide linux                                      oxide windows  oxide windows

var brush = new HatchBrush(HatchStyle.BackwardDiagonal, Color.FromArgb(32, 0, 0, 0), Color.FromArgb(255, 0, 0, 0));
graphics.FillRectangle(brush, rect);​

Any ideas? is it a bug? Thank you.

That code isn't from something that Oxide provides.

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