Add rainbow-dark irssi theme

Dark-background theme with a full rainbow of accent colors for nicks,
statusbar items, and event markers.

Activate with:
  /set theme rainbow-dark
  /save

.irssi/rainbow-dark.theme

@@ -0,0 +1,214 @@
+# rainbow-dark.theme
+#
+# A dark-background irssi theme that leans into a full rainbow for
+# highlights, nicks, and statusbar accents. Reads best on a true-black
+# or near-black terminal background (e.g. xterm-256color, 80% opacity,
+# no bright-bold forced to normal weight).
+#
+# Activate:
+#   /set theme rainbow-dark
+#   /save
+#
+# When testing changes: /RELOAD picks up edits without restarting irssi.
+# Remember to /SAVE before /RELOAD — /SAVE will overwrite this file
+# otherwise. Keep a backup.
+
+default_color = "-1";
+info_eol = "false";
+
+# Fade any bracket-ish punctuation to dark grey so the rainbow colors pop.
+replaces = { "[]=()<>" = "%K$*%n"; };
+
+abstracts = {
+  ##
+  ## generic
+  ##
+
+  # Rainbow dash at the start of non-message lines. Rotates R O Y G B I V
+  # across seven characters for the classic prism.
+  line_start = "%R-%Y-%Y-%G-%C-%B-%M-%n ";
+
+  # Dim cyan timestamps — present but recessive.
+  timestamp = "%c$*%n";
+
+  # Highlight anything important in bold yellow.
+  hilight = "%_%Y$*%n%_";
+
+  # Errors in bright red, bold.
+  error = "%_%R$*%n%_";
+
+  # Channel names: bright magenta, bold.
+  channel = "%_%M$*%n%_";
+
+  # Default nick styling: bold cyan.
+  nick = "%_%C$*%n%_";
+
+  # Nick-host wrapped in dark-grey square brackets (picked up by "replaces").
+  nickhost = "[%K$*%n]";
+
+  # Server names: bright blue.
+  server = "%_%B$*%n%_";
+
+  # Generic bracketed comment: fade to dark grey.
+  comment = "[%K$*%n]";
+  reason = "{comment $*}";
+  mode   = "{comment $*}";
+
+  ##
+  ## channel-specific messages (joins, parts, quits, etc.)
+  ##
+
+  # Someone new showing up (join) — bright green.
+  channick_hilight = "%_%G$*%n%_";
+  chanhost_hilight = "{nickhost %g$*%n}";
+
+  # Someone leaving (part/quit) — dim red.
+  channick = "%r$*%n";
+  chanhost = "{nickhost %K$*%n}";
+
+  # Highlighted channel reference — bright magenta.
+  channelhilight = "%_%M$*%n%_";
+
+  # Ban / invite masks — dim red.
+  ban = "%r$*%n";
+
+  ##
+  ## messages
+  ##
+
+  # Angle brackets around nicks stay dark grey so the nick color is the star.
+  msgnick = "%K<%n$0$1-%K>%n %|";
+
+  # Messages from you.
+  ownmsgnick = "{msgnick $0 $1-}";
+  ownnick    = "%_%W$*%n%_";
+
+  # Normal public messages — nick gets a bright cyan.
+  pubmsgnick = "{msgnick $0 $1-}";
+  pubnick    = "%_%C$*%n%_";
+
+  # Messages addressed to you (@you) — bright yellow nick to catch the eye.
+  pubmsgmenick = "{msgnick $0 $1-}";
+  menick       = "%_%Y$*%n%_";
+
+  # Hilighted message (keyword triggered).
+  pubmsghinick = "{msgnick $1 $0$2-%n}";
+
+  # channel prefix on a message: ":#chan" in bright magenta.
+  msgchannel = "%K:%M$*%n";
+
+  # Private messages — heavy bright-magenta framing so queries stand apart.
+  privmsg    = "[%_%M$0%_%K(%m$1-%K)%n] ";
+  ownprivmsg = "[%_%m$0%_%K(%M$1-%K)%n] ";
+
+  # Private message in a query window.
+  ownprivmsgnick = "{msgnick  $*}";
+  ownprivnick    = "%_%W$*%n%_";
+  privmsgnick    = "{msgnick  %_%M$*%n%_}";
+
+  ##
+  ## Actions (/me)
+  ##
+
+  # Bright yellow asterisks so actions are unmistakable.
+  action_core  = "%_%Y * %n$*%n";
+  action       = "{action_core $*} ";
+  ownaction    = "{action $*}";
+  ownaction_target = "{action_core $0}%K:%M$1%n ";
+
+  # Private actions get a parenthesized asterisk; keep it in bright yellow.
+  pvtaction       = "%_%Y (*) %n$*%n ";
+  pvtaction_query = "{action $*}";
+  pubaction       = "{action $*}";
+
+  ##
+  ## other IRC events
+  ##
+
+  # whois
+  whois = "%c %# $[8]0 : %n$1-";
+
+  # notices — magenta stays the "alert" color
+  ownnotice         = "[%_%m$0%_%K(%M$1-%K)]%n ";
+  notice            = "%K-%_%M$*%_%K-%n ";
+  pubnotice_channel = "%K:%m$*";
+  pvtnotice_host    = "%K(%m$*%K)";
+
+  # server notices — bright green so they feel "system-ish"
+  servernotice = "%_%G!%n$*%n ";
+
+  # CTCPs — bright green
+  ownctcp = "[%_%g$0%_%K(%G$1-%K)] ";
+  ctcp    = "%_%G$*%n%_";
+
+  # wallops
+  wallop        = "%_%Y$*%n%_: ";
+  wallop_nick   = "%n$*";
+  wallop_action = "%_%Y * $*%n%_ ";
+
+  # netsplits / netjoins — red fall, green rise
+  netsplit = "%_%R$*%n%_";
+  netjoin  = "%_%G$*%n%_";
+
+  # /names list — each name gets bright cyan brackets
+  names_prefix       = "";
+  names_nick         = "[%_%C$0%n%_$1-] ";
+  names_nick_op      = "{names_nick $*}";
+  names_nick_halfop  = "{names_nick $*}";
+  names_nick_voice   = "{names_nick $*}";
+  names_users        = "[%g$*%n]";
+  names_channel      = "%_%M$*%n%_";
+
+  # DCC — green family so transfers read as "network-y"
+  dcc     = "%_%G$*%n%_";
+  dccfile = "%_$*%_";
+
+  # DCC chat, own msg/action
+  dccownmsg         = "[%_%r$0%_%K($1-%K)%n] ";
+  dccownnick        = "%_%R$*%n%_";
+  dccownquerynick   = "%_%W$*%n%_";
+  dccownaction      = "{action $*}";
+  dccownaction_target = "{action_core $0}%K:%M$1%n ";
+
+  # DCC chat, others
+  dccmsg      = "[%_%G$1-%_%K(%g$0%K)%n] ";
+  dccquerynick = "%_%G$*%n%_";
+  dccaction   = "%_%Y (*dcc*) %n$*%n %|";
+
+  ##
+  ## statusbar — the rainbow lives here
+  ##
+
+  # Dark grey bg with white default fg. Individual items override with
+  # their own color for the rainbow effect.
+  sb_background = "%8%w";
+
+  # Input line sits on the terminal's normal background.
+  sb_prompt_bg  = "%n";
+
+  # Info bar (the middle one) — slightly different dark tone.
+  sb_info_bg    = "%8";
+
+  sbstart      = "";
+  sbend        = " ";
+  topicsbstart = "{sbstart $*}";
+  topicsbend   = "{sbend $*}";
+
+  prompt   = "%_%M[%n$*%_%M]%n%_ ";
+  sb       = " %M[%n$*%M]%n";
+  sbmode   = "(%G+%n$*)";
+  sbaway   = " (%YzZzZ%n)";
+  sbservertag = ":%C$0%n (^X)";
+  sbnickmode  = "%Y$0%n";
+
+  # activity in statusbar — rotates through the rainbow.
+  sb_act_sep           = "%K$*";
+  sb_act_text          = "%G$*";   # plain chatter         (green)
+  sb_act_msg           = "%_%C$*%_"; # someone said something (cyan)
+  sb_act_hilight       = "%_%M$*%_"; # something for you      (magenta)
+  sb_act_hilight_color = "$0$1-%n";
+};
+
+formats = {
+  "fe-common/core" = { pubmsg = "{pubmsgnick $2 {pubnick \00305$0}}$1"; };
+};