Use latest sixteen release

shard.yml

@@ -1,5 +1,5 @@
 name: tartrazine
-version: 0.6.1
+version: 0.6.3
 
 authors:
   - Roberto Alsina <roberto.alsina@gmail.com>
@@ -16,7 +16,6 @@ dependencies:
     github: crystal-china/base58.cr
   sixteen:
     github: ralsina/sixteen
-    branch: main
   docopt:
     github: chenkovsky/docopt.cr
 

src/formatters/ansi.cr

@@ -11,7 +11,7 @@ module Tartrazine
       "#{i + 1}".rjust(4).ljust(5)
     end
 
-    def format(text : String, lexer : Lexer) : String
+    def format(text : String, lexer : BaseLexer) : String
       outp = String::Builder.new("")
       format(text, lexer, outp)
       outp.to_s