.jsf (JOE editor) syntax highlighting for todo.txt

I can't get the JOE editor to highlight tags like `due:YYYY-MM-TT for due dates or rec:NP` for recurrences to work; I was able to highlight prioritized tasks though. * A sample todo.txt looks like this:

update the ad with Sara
    (B) ask Richard about stuff
    send questions to Mr K next week
    (B) ask T about integration for A
    (A) test 1110 due:2024-12-09 rec:1d
    test 1120 due:2024-12-09 rec:1w and tell S

* I'm trying to highlight the prioritized tasks and the tags with this todotxt.jsf:

# Todo.txt syntax highlighting for JOE
    
    =Idle
    =Prio    CYAN    bold
    =Due    bg_MAGENTA
    =Rec    bg_YELLOW
    
    :lineStart Idle
      *    idle    buffer
      "("    prio    noeat    buffer
    
    :idle Idle
      *    idle    buffer
      " :"    tagwordsIdle    hold
      "\n"    lineStart
    
    :prio Prio
      *    prio    buffer
      " :"    tagwordsPrio    hold
      "\n"    lineStart
    
    :tagwordsIdle Idle
      *    idle
      "\n"    lineStart    strings
      "due"    dueIdle    recolor=-2
      #"rec"    recIdle
    done
    
    :tagwordsPrio Prio
      *    prio
      "\n"    lineStart    strings
      "due"    duePrio    recolor=-2
      #"rec"    recPrio
    done
    
    :dueIdle Due
      *    dueIdle
      " \t"    idle
    
    :duePrio Due
      *    duePrio
      " \t"    prio

How would I highlight individual tags/words within a line?