(boolean_scalar) @boolean(null_scalar) @constant.builtin [  (double_quote_scalar)  (single_quote_scalar)  (block_scalar)  (string_scalar)] @string (escape_sequence) @string.escape [  (integer_scalar)  (float_scalar)] @number (comment) @comment [  (anchor_name)  (alias_name)  (tag)] @type key: (flow_node (plain_scalar (string_scalar) @property)) [ "," "-" ":" ">" "?" "|"] @punctuation.delimiter [ "[" "]" "{" "}"] @punctuation.bracket [ "*" "&" "---" "..."] @punctuation.special