diff --git a/groff/sboxes.tmac b/groff/sboxes.tmac
deleted file mode 100644
index 63c9263..0000000
--- a/groff/sboxes.tmac
+++ /dev/null
@@ -1,147 +0,0 @@
-.ig
-
-sboxes.tmac
-
-Copyright (C) 2021 Free Software Foundation, Inc.
-     Written by Deri James (deri@chuzzlewit.myzen.co.uk)
-
-This file is part of groff.
-
-groff is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation, either version 3 of the License, or (at your
-option) any later version.
-
-groff is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-..
-.if !\n(.g \{\
-.  tm sboxes.tmac: macros require groff extensions; not loading
-.  nx
-.\}
-.
-.if \n(.C \{\
-.  tm sboxes.tmac: macros do not work in compatibility mode; not loading
-.  nx
-.\}
-.
-.\" Define a string for use in diagnostic messages.
-.ds bx*name sboxes.tmac\"
-.
-.if !r GS \
-.  ab \*[bx*name]: ms macros must be loaded first; aborting
-.
-.if (\n[.x]\n[.y] < 123) \{\
-.  ds bx*msg \*[bx*name]: groff 1.23 or later is required,\"
-.  as bx*msg " but found groff \n[.x].\n[.y]; not loading\"
-.  tm \*[bx*msg]
-.  nx
-.\}
-.
-.\" See if already loaded.
-.if r GSBOX .nx
-.
-.\" GSBOX is defined if the package is loaded, and true if it will work.
-.nr GSBOX 0
-.if '\*[.T]'pdf' \
-.  nr GSBOX 1
-.
-.nr bx*stack 0
-.
-.de bx*error
-.  tm \*[bx*name]:\\n[.F]:\\n[.c]: error: \\$*
-..
-.
-.\" Define dummy macro if we're not formatting for the pdf device.
-.if !\n[GSBOX] \{\
-.  de pdfbackground
-.  .
-.\}
-.
-.\" Link into ms macros to trap footnote growth
-.am fn@print-sep
-.  nr bx*pb \\n[nl]u-2p
-.  nop \!x X pdf: background footnote \\n[bx*pb]z
-.  rr bx*pb
-..
-.\" Has PD been actioned?
-.am par*start
-.  nr bx*PD \\n[PD]
-..
-.
-.de BOXSTART
-.  fl
-.  nr bx*stack \\n[bx*stack]+1u
-.  nr bx*shad 0
-.  nr bx*outl 0
-.  nr bx*ind 1P
-.  ds bx*wt 0
-.  ds bx*type "\"
-.  while \\n[.$] \{\
-.    ie 'SHADED'\\$1' \{\
-.       nop \\M[\\$2]\c
-.       nr bx*shad 1
-.       as bx*type "fill\"
-.       shift 2
-.    \}
-.    el \{\
-.     ie 'OUTLINED'\\$1' \{\
-.       nop \\m[\\$2]\c
-.       nr bx*outl 1
-.       as bx*type "box\"
-.       shift 2
-.     \}
-.     el \{\
-.       ie 'WEIGHT'\\$1' \{\
-.         ds bx*wt \\$2
-.         shift 2
-.       \}
-.       el \{\
-.         ie 'INDENT'\\$1' \{\
-.           nr bx*ind \\$2
-.           shift 2
-.         \}
-.         el \{\
-.           bx*error ignoring unrecognized BOXSTART parameter '\\$1'
-.           shift
-.         \}
-.       \}
-.     \}
-.    \}
-.  \}
-.
-.  if '\\*[bx*type]'' .ds bx*type "fill"
-.  nr bx*l \\n[\\n[.ev]:li]s+\\n[.o]s-\\n[bx*ind]u
-.  nr bx*r \\n[bx*l]u+\\n[.l]-\\n[\\n[.ev]:li]+(\\n[bx*ind]u*2u)
-.  nr bx*gap \\n[.v]-\\n[.ps]+\\*[bx*wt]
-.  nr bx*bot \\n[.p]u-\\n[FM]u+\\n[bx*ind]u+\\n[.ps]u
-.  nr bx*top \\n[HM]-\\n[bx*ind]u+\\n[bx*gap]u
-.  ne \\n[bx*ind]u+2v+\\*[bx*wt]
-.  sp -(2v-(\\n[bx*PD]u*2u))u
-.  pdfbackground \\*[bx*type] \\n[bx*l]z \\n[bx*top]z \
-                              \\n[bx*r]z \\n[bx*bot]z \
-                              \\*[bx*wt]
-.  sp (\\n[bx*ind]u-1v)u
-.  if (\\n[bx*shad]=1) .nop \\M[]\c
-.  if (\\n[bx*outl]=1) .nop \\m[]\c
-.  ds bx*ind\\n[bx*stack] \\n[bx*ind]
-.  rr bx*shad bx*outl bx*ind bx*bot bx*top bx*l bx*r
-.  rm wt type
-.  sp -(\\n[bx*gap]u)
-.  nr bx*PD 0
-..
-.de BOXSTOP
-.  sp \\*[bx*ind\\n[bx*stack]]u-\\n[.psr]u
-.  pdfbackground off
-.  nr bx*stack \\n[bx*stack]-1u
-..
-.\" Local Variables:
-.\" mode: nroff
-.\" fill-column: 72
-.\" End:
-.\" vim: set expandtab filetype=groff textwidth=72:
diff --git a/groff/utils.tmac b/groff/utils.tmac
index abf62e7..4057723 100644
--- a/groff/utils.tmac
+++ b/groff/utils.tmac
@@ -1,3 +1,7 @@
+.\" This one requires groff 1.23.0 or later
+.\" It is used in the .CS/.CE custom macros
+.mso sboxes.tmac
+.
 .\" These lines set link text and border colours
 .ds PDFHREF.COLOUR #193be5
 .defcolor pdf:href.colour rgb \*[PDFHREF.COLOUR]
@@ -32,3 +36,9 @@
 .ft
 .BOXSTOP
 ..
+.
+.\" Easier headings
+.de HE
+.NH \\$2
+.XN \\$1
+..
diff --git a/zathura/zathurarc b/zathura/zathurarc
index c36623d..7dca677 100644
--- a/zathura/zathurarc
+++ b/zathura/zathurarc
@@ -32,4 +32,4 @@ set completion-highlight-fg     "#121212"
 set completion-highlight-bg     "#d3869b"
 
 set recolor-lightcolor          "#121212"
-set recolor-darkcolor           "#ffffff"
+set recolor-darkcolor           "#ebdbb2"