Slides Move in wrong Way in RTL

[Shy Zedaka]

https://i.gyazo.com/bef1007ad4f9c9615b932542048ebacb.png
In this screenshot We can see the Ubiquity Slideshow in Ubuntu MATE In Hebrew.
When Pressing the Left Arrow. The slide (Animation wise) Goes Right Just like it would in English.

This is a Minor Bug with the ubiquity Slideshow. where it uses the Regular LTR Animations When the RTL Format is in use.

I am using Ubuntu MATE 20.04 Focal Fossa (Development branch).

Expected Result: Animation Slides Left With Direction of the Arrow.
Actual Result: Animation Slides Right Despite Pressing the Left Arrow (First slide and other slides aswell)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Yaron (sh-yaron)]

I've investigated the code, apparently there is an RTL parameter set which aligned the text to the right direction but the RTL parameter does not affect the HTML slideshow which is loaded externally.

Is there a way to create CSS override using Python or we should think of a different approach?