Image forward direction in drawing direction way, problem.

[Allroads]

We have the Openstreetmap access signs.
​https://wiki.openstreetmap.org/wiki/Key:access#Land-based_transportation
example:

We have the traffic_signs.
Like these ​https://wiki.openstreetmap.org/wiki/NL:Overzicht_Nederlandse_Verkeersborden#C:_Geslotenverklaring
Example:

The forward direction of these vehicle images is from right to left.

Logical, that I made icon image from right to left too.

Now making a mapcss style using these icon image, I see that the forward direction of these images is not the drawing direction of the way, forward, this is odd and confusing.

There are access right, then only :forward and :backward is used in the key.
This must be expressed in the icon image, showing the forward to the front of the vehicle.

Then we can see the drawing direction of the way, when you see a vehicle icon and set for example a traffic_signal, give way, stop direction, derived from the vehicle icon.

Therefor, we need to flip the icon 180 degrees.
We need a code for that.

And I need to reset the icon-offset. ( to get it under the line as the examples).