Exporting 2D graphics, raster files, and animations just got better. You can now control the overall line thicknesses of exported images with our new line scale multiplier, found in the export options dialogs.
Before this change, line weights stayed the same as the viewport which would make the line weight too small or too large. So, if you are experiencing line weights that are too thick, you can make those line weights thinner. Also, .png images now export with its transparency so you can see what is behind the material while compositing.