|oojs/ui||master||+12 -12||icons: Unify cross-out lines direction to top-left/bottom-right|
|Resolved||Volker_E||T132991 Various issues with OOUI's MediaWiki theme icons|
|Resolved||Volker_E||T133076 Cross-out lines in OOUI's MediaWiki theme icons are pointing to different directions|
That's actually a really interesting problem. I am actually not entirely sure that cross-out lines are rtl/ltr related, similarly to check-marks.
For example, I am left-handed, and my check-mark is flipped from a person who'd write it right-handed. That's not because of RTL, but because I am left-handed, and the motion of my hand is that way.
I am not sure we need to flip those, but since I am not sure if there is a convention in this case, I would defer to @Amire80's judgment (and ping him on this at the same time)
There's another finding: Android (Material Design) uses in their LTR version top-left to bottom-right cross-out lines to indicate off state. With reading direction left-to-right several icons are also graph like featuring a bottom-left to top-right iconography. One important example is https://design.google.com/icons/#ic_signal_cellular_off
Therefore it seems advantegous to have the cross-out lines top-left to bottom-right.