In the sample below, everything after "description" is recognized as Yaml Text.
If I remove the leading spaces on the 3 lines of text, then the rest of the file gets colored correctly.
allOf:
- $ref: ../../foo/bar/blat.yaml
- description: >-
Taa aaaaaaa aaaaaaaa(aa aaaaaaaaaaa) aa a aaaa aa
aaaaaa aaa aaaaa aaaaaaa aaaaaaa aaaaa aaaaaaaa.
Raaaaaa aaaa aaaaaa aa aaaa.
type: object