From a comment in Aviation Herald
Accident: Qatar B773 at Miami on Sep 15th 2015, struck approach lights on departure
If the OPT calculate performance from any intersection then the symbol is a slash. It would be like that " 09/T1 " . Devils coincident . T1 = temporary runway in the OPT and the name of the intersection is T1.
Looks like an EFB software Human Factors issue. No symbol used in the software should match real world runway symbology or intersection signage. Asking for a Murphy with that
