Slic3r plater view is mirrored along Y vs resulting gcode

[KazW]

When I slice an object, using the plater, if it has a footprint like an isosceles triangle (for example), with it's hypotenuse along the left hand side of the bed, when I load it in Pronterface and print it, the hypotenuse is along the right side of the bed.

This isn't really a big issue, but can be annoying to compensate for when you want your fill to have a specific directionality, like when making things with aerodynamic properties.