diff --git a/.irssi/rainbow-dark.theme b/.irssi/rainbow-dark.theme
index 65467a9c..9f1d9cb1 100644
--- a/.irssi/rainbow-dark.theme
+++ b/.irssi/rainbow-dark.theme
@@ -17,7 +17,7 @@ default_color = "-1";
 info_eol = "false";
 
 # Fade any bracket-ish punctuation to dark grey so the rainbow colors pop.
-replaces = { "[]=()<>" = "%Z005f5f$*%n"; };
+replaces = { "[]=()<>" = "%z005f5f$*%n"; };
 
 abstracts = {
   ##
@@ -29,7 +29,7 @@ abstracts = {
   line_start = "%R-%Y-%Y-%G-%C-%B-%M-%n ";
 
   # Dim cyan timestamps — present but recessive.
-  timestamp = "%Z005f5f$*%n";
+  timestamp = "%z005f5f$*%n";
 
   # Highlight anything important in bold yellow.
   hilight = "%_%Y$*%n%_";
@@ -44,13 +44,13 @@ abstracts = {
   nick = "%_%C$*%n%_";
 
   # Nick-host wrapped in dark-grey square brackets (picked up by "replaces").
-  nickhost = "[%Z005f5f$*%n]";
+  nickhost = "[%z005f5f$*%n]";
 
   # Server names: bright blue.
   server = "%_%B$*%n%_";
 
   # Generic bracketed comment: fade to dark grey.
-  comment = "[%Z005f5f$*%n]";
+  comment = "[%z005f5f$*%n]";
   reason = "{comment $*}";
   mode   = "{comment $*}";
 
@@ -64,7 +64,7 @@ abstracts = {
 
   # Someone leaving (part/quit) — dim red.
   channick = "%r$*%n";
-  chanhost = "{nickhost %Z005f5f$*%n}";
+  chanhost = "{nickhost %z005f5f$*%n}";
 
   # Highlighted channel reference — bright magenta.
   channelhilight = "%_%M$*%n%_";
@@ -79,7 +79,7 @@ abstracts = {
   # Angle brackets around nicks stay dark grey so the nick color is the star.
   # Trailing %w tints the message body dim grey so it doesn't compete with
   # the rainbow accents.
-  msgnick = "%Z005f5f<%n$0$1-%Z005f5f>%n %|%Z005f5f";
+  msgnick = "%z005f5f<%n$0$1-%z005f5f>%n %|%z005f5f";
 
   # Messages from you.
   ownmsgnick = "{msgnick $0 $1-}";
@@ -97,11 +97,11 @@ abstracts = {
   pubmsghinick = "{msgnick $1 $0$2-%n}";
 
   # channel prefix on a message: ":#chan" in bright magenta.
-  msgchannel = "%Z005f5f:%M$*%n";
+  msgchannel = "%z005f5f:%M$*%n";
 
   # Private messages — heavy bright-magenta framing so queries stand apart.
-  privmsg    = "[%_%M$0%_%Z005f5f(%m$1-%Z005f5f)%n] ";
-  ownprivmsg = "[%_%m$0%_%Z005f5f(%M$1-%Z005f5f)%n] ";
+  privmsg    = "[%_%M$0%_%z005f5f(%m$1-%z005f5f)%n] ";
+  ownprivmsg = "[%_%m$0%_%z005f5f(%M$1-%z005f5f)%n] ";
 
   # Private message in a query window.
   ownprivmsgnick = "{msgnick  $*}";
@@ -114,13 +114,13 @@ abstracts = {
 
   # Bright yellow asterisks so actions are unmistakable. Action text in dim
   # grey to match ordinary message bodies.
-  action_core  = "%_%Y * %n%Z005f5f$*%n";
+  action_core  = "%_%Y * %n%z005f5f$*%n";
   action       = "{action_core $*} ";
   ownaction    = "{action $*}";
-  ownaction_target = "{action_core $0}%Z005f5f:%M$1%n ";
+  ownaction_target = "{action_core $0}%z005f5f:%M$1%n ";
 
   # Private actions get a parenthesized asterisk; keep it in bright yellow.
-  pvtaction       = "%_%Y (*) %n%Z005f5f$*%n ";
+  pvtaction       = "%_%Y (*) %n%z005f5f$*%n ";
   pvtaction_query = "{action $*}";
   pubaction       = "{action $*}";
 
@@ -129,25 +129,25 @@ abstracts = {
   ##
 
   # whois — cyan field name, dim-grey value
-  whois = "%Z005f5f %# $[8]0 : %n%Z005f5f$1-%n";
+  whois = "%z005f5f %# $[8]0 : %n%z005f5f$1-%n";
 
   # notices — magenta stays the "alert" color
-  ownnotice         = "[%_%m$0%_%Z005f5f(%M$1-%Z005f5f)]%n ";
-  notice            = "%Z005f5f-%_%M$*%_%Z005f5f-%n ";
-  pubnotice_channel = "%Z005f5f:%m$*";
-  pvtnotice_host    = "%Z005f5f(%m$*%Z005f5f)";
+  ownnotice         = "[%_%m$0%_%z005f5f(%M$1-%z005f5f)]%n ";
+  notice            = "%z005f5f-%_%M$*%_%z005f5f-%n ";
+  pubnotice_channel = "%z005f5f:%m$*";
+  pvtnotice_host    = "%z005f5f(%m$*%z005f5f)";
 
   # server notices — bright green bang, dim-grey body
-  servernotice = "%_%G!%n%Z005f5f$*%n ";
+  servernotice = "%_%G!%n%z005f5f$*%n ";
 
   # CTCPs — bright green
-  ownctcp = "[%_%g$0%_%Z005f5f(%G$1-%Z005f5f)] ";
+  ownctcp = "[%_%g$0%_%z005f5f(%G$1-%z005f5f)] ";
   ctcp    = "%_%G$*%n%_";
 
   # wallops
   wallop        = "%_%Y$*%n%_: ";
-  wallop_nick   = "%Z005f5f$*%n";
-  wallop_action = "%_%Y * %n%Z005f5f$*%n ";
+  wallop_nick   = "%z005f5f$*%n";
+  wallop_action = "%_%Y * %n%z005f5f$*%n ";
 
   # netsplits / netjoins — red fall, green rise
   netsplit = "%_%R$*%n%_";
@@ -164,19 +164,19 @@ abstracts = {
 
   # DCC — green family so transfers read as "network-y"
   dcc     = "%_%G$*%n%_";
-  dccfile = "%_%Z005f5f$*%n%_";
+  dccfile = "%_%z005f5f$*%n%_";
 
   # DCC chat, own msg/action
-  dccownmsg         = "[%_%r$0%_%Z005f5f($1-%Z005f5f)%n] ";
+  dccownmsg         = "[%_%r$0%_%z005f5f($1-%z005f5f)%n] ";
   dccownnick        = "%_%R$*%n%_";
   dccownquerynick   = "%_%M$*%n%_";
   dccownaction      = "{action $*}";
-  dccownaction_target = "{action_core $0}%Z005f5f:%M$1%n ";
+  dccownaction_target = "{action_core $0}%z005f5f:%M$1%n ";
 
   # DCC chat, others
-  dccmsg      = "[%_%G$1-%_%Z005f5f(%g$0%Z005f5f)%n] ";
+  dccmsg      = "[%_%G$1-%_%z005f5f(%g$0%z005f5f)%n] ";
   dccquerynick = "%_%G$*%n%_";
-  dccaction   = "%_%Y (*dcc*) %n%Z005f5f$*%n %|";
+  dccaction   = "%_%Y (*dcc*) %n%z005f5f$*%n %|";
 
   ##
   ## statusbar — the rainbow lives here
@@ -206,7 +206,7 @@ abstracts = {
   sbnickmode  = "%Y$0%n";
 
   # activity in statusbar — rotates through the rainbow.
-  sb_act_sep           = "%Z005f5f$*";
+  sb_act_sep           = "%z005f5f$*";
   sb_act_text          = "%G$*";   # plain chatter         (green)
   sb_act_msg           = "%_%C$*%_"; # someone said something (cyan)
   sb_act_hilight       = "%_%M$*%_"; # something for you      (magenta)
@@ -214,26 +214,26 @@ abstracts = {
 };
 
 formats = {
-  # Common channel-event formats get explicitly wrapped in %Z005f5f (dark grey)
+  # Common channel-event formats get explicitly wrapped in %z005f5f (dark grey)
   # so the plain-text body doesn't fall through to the terminal default
   # (which on a typical dark terminal is stark white).
   "fe-common/core" = {
     pubmsg            = "{pubmsgnick $2 {pubnick \00305$0}}$1";
-    join              = "%Z005f5f-->%n {channick_hilight $0} {chanhost_hilight $1} has joined {channel $2}";
-    part              = "%Z005f5f<--%n {channick $0} {chanhost $1} %Z005f5fhas left%n {channel $2} {reason $3}";
-    quit              = "%Z005f5f<--%n {channick $0} {chanhost $1} %Z005f5fhas quit%n {reason $2}";
-    quit_once         = "%Z005f5f<--%n {channick $0} {chanhost $1} %Z005f5fhas quit%n {channel $2} {reason $3}";
-    kick              = "%Z005f5f<--%n {channick $0} %Z005f5fwas kicked from%n {channel $1} %Z005f5fby%n {nick $2} {reason $3}";
-    nick_changed      = "%Z005f5f-!-%n {channick $0} %Z005f5fis now known as%n {channick_hilight $1}";
-    your_nick_changed = "%Z005f5f-!-%n %Z005f5fYou're now known as%n {channick_hilight $1}";
-    topic             = "%Z005f5f-!-%n %Z005f5fTopic for%n {channel $0}%Z005f5f:%n %Z005f5f$1%n";
-    topic_info        = "%Z005f5f-!-%n %Z005f5fTopic set by%n {nick $0} {nickhost $1} %Z005f5f($2)%n";
-    new_topic         = "%Z005f5f-!-%n {nick $0} %Z005f5fchanged the topic of%n {channel $1} %Z005f5fto:%n %Z005f5f$2%n";
-    server_changed    = "%Z005f5f-!-%n %Z005f5fServer changed to%n %_$1%_";
-    chanmode_change   = "%Z005f5f-!-%n %Z005f5fmode/%n{channelhilight $0} {mode $1} %Z005f5fby%n {nick $2}";
-    usermode_change   = "%Z005f5f-!-%n %Z005f5fmode/%n{nick $1} {mode $0}";
-    away              = "%Z005f5f-!-%n %Z005f5fzzz: %n$0";
-    unaway            = "%Z005f5f-!-%n %Z005f5fwelcome back%n";
+    join              = "%z005f5f-->%n {channick_hilight $0} {chanhost_hilight $1} has joined {channel $2}";
+    part              = "%z005f5f<--%n {channick $0} {chanhost $1} %z005f5fhas left%n {channel $2} {reason $3}";
+    quit              = "%z005f5f<--%n {channick $0} {chanhost $1} %z005f5fhas quit%n {reason $2}";
+    quit_once         = "%z005f5f<--%n {channick $0} {chanhost $1} %z005f5fhas quit%n {channel $2} {reason $3}";
+    kick              = "%z005f5f<--%n {channick $0} %z005f5fwas kicked from%n {channel $1} %z005f5fby%n {nick $2} {reason $3}";
+    nick_changed      = "%z005f5f-!-%n {channick $0} %z005f5fis now known as%n {channick_hilight $1}";
+    your_nick_changed = "%z005f5f-!-%n %z005f5fYou're now known as%n {channick_hilight $1}";
+    topic             = "%z005f5f-!-%n %z005f5fTopic for%n {channel $0}%z005f5f:%n %z005f5f$1%n";
+    topic_info        = "%z005f5f-!-%n %z005f5fTopic set by%n {nick $0} {nickhost $1} %z005f5f($2)%n";
+    new_topic         = "%z005f5f-!-%n {nick $0} %z005f5fchanged the topic of%n {channel $1} %z005f5fto:%n %z005f5f$2%n";
+    server_changed    = "%z005f5f-!-%n %z005f5fServer changed to%n %_$1%_";
+    chanmode_change   = "%z005f5f-!-%n %z005f5fmode/%n{channelhilight $0} {mode $1} %z005f5fby%n {nick $2}";
+    usermode_change   = "%z005f5f-!-%n %z005f5fmode/%n{nick $1} {mode $0}";
+    away              = "%z005f5f-!-%n %z005f5fzzz: %n$0";
+    unaway            = "%z005f5f-!-%n %z005f5fwelcome back%n";
     own_msg           = "{ownmsgnick $2 {ownnick $0}}$1";
     own_msg_channel   = "{ownmsgnick $3 {ownnick $0}{msgchannel $1}}$2";
     own_msg_private_query = "{ownprivmsgnick {ownprivnick $2}}$1";