You can change the rendering method by which the objects on the site are shown to you. If you choose a line width which is greater than zero then the objects would be rendered with antialiasing. That means inclined lines will have less of a “jagged” effect. This can be useful when you have objects with lot of inclined or diagonal lines.

If you select the line width as zero then, the rendering will be done without the antialiasing effect. That means, inclined lines will surely look jaggedy – but overall the rendering will be sharper.

Lower values of the linewidths will make the rendering of the lines fainter (i.e. lesser contrast)