Frame Props dialog shows BT.709 Primaries as Unspecified
Gotta admit this is a weird one, because I checked the code and the primaries are indeed in the correct order in the list vspreview has.
The issue I'm seeing is that, when opening the Frame Props dialog for a script where _Primaries is set to 1, the Frame Props dialog shows "Unspecified" instead of the expected "BT.709". Matrix and Transfer properties display correctly, and all other Primaries except BT.709 also display correctly.
I don't know what's up with the props lately, I also got people telling me that limited color range is displaywled as full.
I will fix all of these issues once I switch to the new package I,ve written, vstools, which has got all the enums needed and helper functions to get the values from frame props _prop_erly.
Fixed in https://github.com/Irrational-Encoding-Wizardry/vs-preview/commit/eafdde3a6d89f573c9485aced1f8f0b831f3e771