Make syntax of keywords consistent throughout file

.vim/syntax/todo.vim

@@ -34,7 +34,7 @@ highlight link todoComment Comment
 " Heading (day) delimiters
 syntax region todoDay start=/\v\=\=\ / skip=/\v\\./ end=/\v\ \=\=\=\=\=\=/
 
-hi link todoDay Delimiter
+highlight link todoDay Delimiter
 
 
 " Show -scratched out- parts of a line as darker text (Delimiter colour)
@@ -76,9 +76,14 @@ highlight todoStatusQuestion ctermfg=darkcyan guifg=#6666ff
 syntax match timeslot "\v\[.*-.*\] " nextgroup=todoItem skipwhite
 highlight timeslot ctermfg=Magenta guifg=#d700af
 
+" Match items starting with a <keyword-or-date-or-something>:
+syntax match todoTitledItem /^[a-zA-Z0-9\-_]*: / nextgroup=todoItem skipwhite
+highlight todoTitledItem ctermfg=172 guifg=#d78700
+"highlight todoTitledItem ctermfg=130 guifg=#af5f00  " DarkOrange
+
 " A todoItem has a subject (e.g., a word that's followed by a ':')
-syn match todoItem '[a-zA-Z0-9\-_]\+:' contained
-hi todoItem ctermfg=Blue guifg=#87d7ff
+syntax match todoItem '[a-zA-Z0-9\-_]\+:' contained
+highlight todoItem ctermfg=Blue guifg=#87d7ff
 
 highlight link todoStatusDone PreProc
 highlight link todoStatusDoing PreProc