Ensure guide-lines visibility in the visual editor #104
Description
Only the dark part of the guide-line texture are currently drawed (the "white part" of them is actually transparent).
That cause the guide-lines to be invisible when drawed on a building (entirely dark texture), or difficultly identified on dotted / stripped textures.
One way to solve this could be to draw in white (instead of transparent) the non-dark parts of the guide-line.
One other way could be to draw alternatively black and white stripes to cause the entirely black items (buildings, ...) to be "guide-lined" by whites strips.