--- a/runtime/syntax/sisu.vim
+++ b/runtime/syntax/sisu.vim
@@ -46,50 +46,50 @@ syn region sisu_header_content contains=
 syn region sisu_header_content contains=sisu_error,sisu_error_wspace,sisu_content_alt,sisu_link,sisu_linked,sisu_break matchgroup=sisu_header start="^@\S\+:[+-]\?\s"rs=e-1 end="$"
 syn region sisu_header_content contains=sisu_error,sisu_error_wspace,sisu_content_alt,sisu_link,sisu_linked,sisu_break matchgroup=sisu_header start="^@\(tags\?\|date\):\s\+"rs=e-1 end="\n$"
 "%   headings
-syn region sisu_heading contains=sisu_mark_endnote,sisu_content_endnote,sisu_marktail,sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_ocn,sisu_error,sisu_error_wspace,sisu_error_spell matchgroup=sisu_structure start="^\([1-8]\|:\?[A-C]\)\~\(\S\+\|[^-]\)" end="$"
+syn region sisu_heading contains=sisu_mark_endnote,sisu_content_endnote,sisu_marktail,sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_ocn,sisu_error,sisu_error_wspace,sisu_error_spell,@Spell matchgroup=sisu_structure start="^\([1-8]\|:\?[A-C]\)\~\(\S\+\|[^-]\)" end="$"
 "%   grouped text
-syn region sisu_content_alt contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell matchgroup=sisu_contain start="table{.\+" end="}table"
-syn region sisu_content_alt contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell matchgroup=sisu_contain start="{t\~h}" end="$$"
-syn region sisu_content_alt contains=sisu_mark_endnote,sisu_content_endnote,sisu_link,sisu_mark,sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell matchgroup=sisu_contain start="^\(alt\|group\|poem\){" end="^}\(alt\|group\|poem\)"
+syn region sisu_content_alt contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell matchgroup=sisu_contain start="table{.\+" end="}table"
+syn region sisu_content_alt contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell matchgroup=sisu_contain start="{t\~h}" end="$$"
+syn region sisu_content_alt contains=sisu_mark_endnote,sisu_content_endnote,sisu_link,sisu_mark,sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell matchgroup=sisu_contain start="^\(alt\|group\|poem\){" end="^}\(alt\|group\|poem\)"
 syn region sisu_content_alt contains=sisu_error matchgroup=sisu_contain start="^code{" end="^}code"
 "%   endnotes
-syn region sisu_content_endnote contains=sisu_link,sisu_strikeout,sisu_underline,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_wspace,sisu_error_spell,sisu_mark,sisu_break matchgroup=sisu_mark_endnote start="\~{" end="}\~" skip="\n"
-syn region sisu_content_endnote contains=sisu_strikeout,sisu_number,sisu_control,sisu_link,sisu_identifier,sisu_error,sisu_error_wspace,sisu_error_spell,sisu_mark,sisu_break matchgroup=sisu_mark_endnote start="\^\~" end="\n\n"
+syn region sisu_content_endnote contains=sisu_link,sisu_strikeout,sisu_underline,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_wspace,sisu_error_spell,@Spell,sisu_mark,sisu_break matchgroup=sisu_mark_endnote start="\~{" end="}\~" skip="\n"
+syn region sisu_content_endnote contains=sisu_strikeout,sisu_number,sisu_control,sisu_link,sisu_identifier,sisu_error,sisu_error_wspace,sisu_error_spell,@Spell,sisu_mark,sisu_break matchgroup=sisu_mark_endnote start="\^\~" end="\n\n"
 "%   images
-syn region sisu_linked contains=sisu_fontface,sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell matchgroup=sisu_link start="{" end="}\(\(http://\|\.\./\)\S\+\|image\)" oneline
+syn region sisu_linked contains=sisu_fontface,sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell matchgroup=sisu_link start="{" end="}\(\(http://\|\.\./\)\S\+\|image\)" oneline
 "%   line operations
-syn region sisu_link contains=sisu_error,sisu_error_wspace,sisu_error_spell matchgroup=sisu_action start="^<<\s*|[a-zA-Z0-9^._-]\+|@|[a-zA-Z0-9^._-]\+|"rs=s+2 end="$"
-syn region sisu_control contains=sisu_strikeout,sisu_identifier,sisu_content_endnote,sisu_mark_endnote,sisu_error,sisu_error_wspace,sisu_error_spell matchgroup=sisu_control start="\(\(^\| \)!_ \|<:b>\)" end="$"
-syn region sisu_normal contains=sisu_strikeout,sisu_identifier,sisu_content_endnote,sisu_mark_endnote,sisu_link,sisu_linked,sisu_error,sisu_error_wspace,sisu_error_spell matchgroup=sisu_markpara start="^_\([12*]\|[12]\*\) " end="$"
-syn region sisu_normal contains=sisu_strikeout,sisu_identifier,sisu_content_endnote,sisu_mark_endnote,sisu_link,sisu_linked,sisu_error,sisu_error_wspace,sisu_error_spell matchgroup=sisu_markpara start="^\(#[ 1]\|_# \)" end="$"
-syn region sisu_comment contains=sisu_error_spell matchgroup=sisu_comment start="^%\{1,2\} " end="$"
+syn region sisu_link contains=sisu_error,sisu_error_wspace,sisu_error_spell,@Spell matchgroup=sisu_action start="^<<\s*|[a-zA-Z0-9^._-]\+|@|[a-zA-Z0-9^._-]\+|"rs=s+2 end="$"
+syn region sisu_control contains=sisu_strikeout,sisu_identifier,sisu_content_endnote,sisu_mark_endnote,sisu_error,sisu_error_wspace,sisu_error_spell,@Spell matchgroup=sisu_control start="\(\(^\| \)!_ \|<:b>\)" end="$"
+syn region sisu_normal contains=sisu_strikeout,sisu_identifier,sisu_content_endnote,sisu_mark_endnote,sisu_link,sisu_linked,sisu_error,sisu_error_wspace,sisu_error_spell,@Spell matchgroup=sisu_markpara start="^_\([12*]\|[12]\*\) " end="$"
+syn region sisu_normal contains=sisu_strikeout,sisu_identifier,sisu_content_endnote,sisu_mark_endnote,sisu_link,sisu_linked,sisu_error,sisu_error_wspace,sisu_error_spell,@Spell matchgroup=sisu_markpara start="^\(#[ 1]\|_# \)" end="$"
+syn region sisu_comment contains=sisu_error_spell,@Spell matchgroup=sisu_comment start="^%\{1,2\} " end="$"
 "%   font face curly brackets
-syn region sisu_control contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell matchgroup=sisu_fontface start="\*{" end="}\*"
-syn region sisu_control contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell matchgroup=sisu_fontface start="!{" end="}!"
-syn region sisu_underline contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell matchgroup=sisu_fontface start="_{" end="}_"
-syn region sisu_identifier contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell matchgroup=sisu_fontface start="/{" end="}/"
-syn region sisu_underline contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell matchgroup=sisu_fontface start="+{" end="}+"
-syn region sisu_identifier contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell matchgroup=sisu_fontface start="\^{" end="}\^"
-syn region sisu_identifier contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell matchgroup=sisu_fontface start=",{" end="}," 
+syn region sisu_control contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell matchgroup=sisu_fontface start="\*{" end="}\*"
+syn region sisu_control contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell matchgroup=sisu_fontface start="!{" end="}!"
+syn region sisu_underline contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell matchgroup=sisu_fontface start="_{" end="}_"
+syn region sisu_identifier contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell matchgroup=sisu_fontface start="/{" end="}/"
+syn region sisu_underline contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell matchgroup=sisu_fontface start="+{" end="}+"
+syn region sisu_identifier contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell matchgroup=sisu_fontface start="\^{" end="}\^"
+syn region sisu_identifier contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell matchgroup=sisu_fontface start=",{" end="}," 
 syn region sisu_strikeout contains=sisu_error matchgroup=sisu_fontface start="-{" end="}-" 
 syn region sisu_html contains=sisu_error contains=sisu_strikeout matchgroup=sisu_contain start="<a href=\".\{-}\">" end="</a>" oneline
 "%   single words bold italicise etc. "workon
 syn region sisu_control contains=sisu_error matchgroup=sisu_control start="\([ (]\|^\)\*[^\|{\n\~\\]"hs=e-1 end="\*"he=e-0 skip="[a-zA-Z0-9']" oneline
 syn region sisu_identifier contains=sisu_error matchgroup=sisu_content_alt start="\([ ]\|^\)/[^{ \|\n\\]"hs=e-1 end="/\[ \.\]" skip="[a-zA-Z0-9']" oneline
 "%   html
-syn region sisu_number contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,sisu_mark matchgroup=sisu_html start="<b>" end="</b>" skip="\n" oneline
-syn region sisu_number contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,sisu_mark matchgroup=sisu_html start="<em>" end="</em>" oneline
-syn region sisu_content_alt contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,sisu_mark matchgroup=sisu_html start="<i>" end="</i>" skip="\n" oneline
-syn region sisu_content_alt contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,sisu_mark matchgroup=sisu_html start="<u>" end="</u>" skip="\n" oneline
-syn region sisu_identifier contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,sisu_mark matchgroup=sisu_html start="<ins>" end="</ins>" skip="\\\\\|\\'" oneline
+syn region sisu_number contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell,sisu_mark matchgroup=sisu_html start="<b>" end="</b>" skip="\n" oneline
+syn region sisu_number contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell,sisu_mark matchgroup=sisu_html start="<em>" end="</em>" oneline
+syn region sisu_content_alt contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell,sisu_mark matchgroup=sisu_html start="<i>" end="</i>" skip="\n" oneline
+syn region sisu_content_alt contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell,sisu_mark matchgroup=sisu_html start="<u>" end="</u>" skip="\n" oneline
+syn region sisu_identifier contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell,sisu_mark matchgroup=sisu_html start="<ins>" end="</ins>" skip="\\\\\|\\'" oneline
 syn region sisu_identifier contains=sisu_error matchgroup=sisu_html start="<del>" end="</del>" oneline
 "%   misc
 syn region sisu_identifier contains=sisu_error matchgroup=sisu_fontface start="\^[^ {\|\n\\]"rs=s+1 end="\^[ ,.;:'})\\\n]" skip="[a-zA-Z0-9']" oneline
 "% metaverse
-syn region sisu_content_alt contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell matchgroup=sisu_contain start="<:Table.\{-}>" end="<:Table[-_]end>"
+syn region sisu_content_alt contains=sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell matchgroup=sisu_contain start="<:Table.\{-}>" end="<:Table[-_]end>"
 syn region sisu_content_alt contains=sisu_error matchgroup=sisu_contain start="<:code>" end="<:code[-_]end>"
-syn region sisu_content_alt contains=sisu_mark_endnote,sisu_content_endnote,sisu_link,sisu_mark,sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell matchgroup=sisu_contain start="<:alt>" end="<:alt[-_]end>"
-syn region sisu_content_alt contains=sisu_mark_endnote,sisu_content_endnote,sisu_link,sisu_mark,sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell matchgroup=sisu_contain start="<:poem>" end="<:poem[-_]end>"
+syn region sisu_content_alt contains=sisu_mark_endnote,sisu_content_endnote,sisu_link,sisu_mark,sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell matchgroup=sisu_contain start="<:alt>" end="<:alt[-_]end>"
+syn region sisu_content_alt contains=sisu_mark_endnote,sisu_content_endnote,sisu_link,sisu_mark,sisu_strikeout,sisu_number,sisu_control,sisu_identifier,sisu_error,sisu_error_spell,@Spell matchgroup=sisu_contain start="<:poem>" end="<:poem[-_]end>"
 "% 6 Expensive Mode
 " Expensive Mode:
 if !exists("sisu_no_expensive")