Exporting a high res image from grasshopper

[Joe4 (Joe Babb)]

Is there a tutorial anywhere for how to set the controls in the dialog window for exporting a high res image of the grasshopper window? There is no help feature as far as I can tell.

When I open up the png image in Gimp I get a checkerboard pattern that I don’t want.

[laurent_delrieu]

Hello

@Joe4

checkerboard pattern

IrfanView (in black)

GIMP

This is the transparent part of image, it is added by GIMP. You just have to read the documentation of GIMP to replace Transparent color.

For example add a layer with a color (white here)

Then flatten