Why doesn't Emmet Sublime work correctly in SASS?

Question

Emmet

The sublime has Emmet, Sass and SASS snippets installed, but there are 2 problems:

1. db, df and the like don't work. The result should be display: block, display: flex. Instead, when db inserts dominant-baseline, when df inserts grid-auto-flow.
   
2. When I write bgi to insert background-image it is inserted without the colon at the end. And so with everyone