Token Facing and Angle of Sight

I have searched through a number of threads (almost all closed) - hopefully I am not duplicating a post and asking a stupid question (I can handle charges of one but not both). When setting a token's <Has Sight / Angle 90*> the arc in the LoS is derived from the side of the token with the rotate bar. Virtually all top-view tokens, however, are "facing" away from the rotate bar, and it doesn't seem possible to set the arc by entering -90 (for example). Is this correct? There are two reasons this is important: it creates a discontinuity in general, and in enabling infravision it seems disorienting.

I believe Riley is considering flipping the default direction of "forward" for LoS in the near future, for exactly the reason you made this post: most top-down tokens are facing down.

I don't like to inflate threads, but I what I wrote didn't make sense to me ; on the off chance it will help someone else, I will try to be clearer (I deleted my useless, second post - the one Brian's followed - in favor of this one). I was having a problem with dynamic lighting and a token's angle of line of sight - they seemed to be looking to the rear (in the direction of the rotation bar). Not a huge problem in itself (I could always just mark up tokens with a facing mark, and future tokens could take this into account), but I was nagged by the thought I wasn't doing something correct. Then, when I stopped thinking about dynamic lighting, I realized the GM can flip an object vertically. Voilla, the token's angle of line of sight matches the facing.