diff --git a/README.md b/README.md
index 34e29e4..3181f35 100644
--- a/README.md
+++ b/README.md
@@ -98,6 +98,27 @@ After that, you can configure the theme as shown below. In this example it is in
    - Make sure to replace `[YOUR_RESOLUTION]` with your resolution and `[THEME]` with the theme
  - Alternatively, use the `-c` option to set a custom resolution
 
+### Fonts:
+GRUB themes use the PF2 font format. GRUB rasterizes a TrueType or OpenType
+font when `grub-mkfont` creates a PF2 file, so the source font must be converted
+for each size used by the theme. The bundled themes use the DejaVu Sans files
+from `common/DejaVuSans.ttf`; Unifont is also included for broad Unicode
+coverage.
+
+To regenerate the bundled fonts, run:
+```sh
+cd common
+./makefont.sh
+```
+
+The script supports both command names used by Linux distributions:
+`grub-mkfont` (including NixOS) and `grub2-mkfont` (including Fedora and
+openSUSE). To convert another font, pass its path, an output prefix, and
+optional sizes:
+```sh
+./makefont.sh /path/to/MyFont.ttf my-font 16 24 32
+```
+
 ## Contributing:
  - If you made changes to icons, or added a new one:
    - Delete the existing icon, if there is one
diff --git a/common/DejaVuSans.ttf b/common/DejaVuSans.ttf
new file mode 100644
index 0000000..e5f7eec
Binary files /dev/null and b/common/DejaVuSans.ttf differ
diff --git a/common/dejavu_sans_12.pf2 b/common/dejavu_sans_12.pf2
new file mode 100644
index 0000000..19e0499
Binary files /dev/null and b/common/dejavu_sans_12.pf2 differ
diff --git a/common/dejavu_sans_14.pf2 b/common/dejavu_sans_14.pf2
new file mode 100644
index 0000000..dcc727e
Binary files /dev/null and b/common/dejavu_sans_14.pf2 differ
diff --git a/common/dejavu_sans_16.pf2 b/common/dejavu_sans_16.pf2
new file mode 100644
index 0000000..37f3ef4
Binary files /dev/null and b/common/dejavu_sans_16.pf2 differ
diff --git a/common/dejavu_sans_24.pf2 b/common/dejavu_sans_24.pf2
new file mode 100644
index 0000000..8c3e434
Binary files /dev/null and b/common/dejavu_sans_24.pf2 differ
diff --git a/common/dejavu_sans_32.pf2 b/common/dejavu_sans_32.pf2
new file mode 100644
index 0000000..bbbbe28
Binary files /dev/null and b/common/dejavu_sans_32.pf2 differ
diff --git a/common/dejavu_sans_48.pf2 b/common/dejavu_sans_48.pf2
new file mode 100644
index 0000000..776c982
Binary files /dev/null and b/common/dejavu_sans_48.pf2 differ
diff --git a/common/makefont.sh b/common/makefont.sh
index 7c47d01..116ddcd 100755
--- a/common/makefont.sh
+++ b/common/makefont.sh
@@ -1,5 +1,53 @@
-#! /usr/bin/env bash
+#!/usr/bin/env bash
 
-grub2-mkfont -o unifont-16.pf2 -s 16 unifont.otf
-grub2-mkfont -o unifont-24.pf2 -s 24 unifont.otf
-grub2-mkfont -o unifont-32.pf2 -s 32 unifont.otf
+set -o errexit
+set -o nounset
+set -o pipefail
+
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+readonly SCRIPT_DIR
+
+if [[ -n "${GRUB_MKFONT:-}" ]]; then
+  readonly FONT_TOOL="${GRUB_MKFONT}"
+elif command -v grub-mkfont >/dev/null 2>&1; then
+  readonly FONT_TOOL="grub-mkfont"
+elif command -v grub2-mkfont >/dev/null 2>&1; then
+  readonly FONT_TOOL="grub2-mkfont"
+else
+  printf 'error: grub-mkfont or grub2-mkfont is required\n' >&2
+  exit 1
+fi
+
+generate_font() {
+  local font_file="$1"
+  local output_prefix="$2"
+  shift 2
+
+  for size in "$@"; do
+    "${FONT_TOOL}" \
+      --output "${SCRIPT_DIR}/${output_prefix}-${size}.pf2" \
+      --size "${size}" \
+      "${font_file}"
+  done
+}
+
+usage() {
+  printf 'Usage: %s [FONT_FILE OUTPUT_PREFIX [SIZE ...]]\n' "$(basename "$0")" >&2
+  printf 'Without arguments, regenerate the bundled DejaVu Sans and Unifont files.\n' >&2
+}
+
+if (( $# == 0 )); then
+  generate_font "${SCRIPT_DIR}/DejaVuSans.ttf" dejavu_sans 12 14 16 24 32 48
+  generate_font "${SCRIPT_DIR}/unifont.otf" unifont 16 24 32
+elif (( $# >= 2 )); then
+  font_file="$1"
+  output_prefix="$2"
+  shift 2
+  if (( $# == 0 )); then
+    set -- 16 24 32
+  fi
+  generate_font "${font_file}" "${output_prefix}" "$@"
+else
+  usage
+  exit 2
+fi
diff --git a/config/theme-1080p.txt b/config/theme-1080p.txt
index acf2b79..40f8529 100644
--- a/config/theme-1080p.txt
+++ b/config/theme-1080p.txt
@@ -19,7 +19,7 @@ terminal-border: "0"
   top = 30%
   width = 40%
   height = 40%
-  item_font = "Unifont Regular 16"
+  item_font = "DejaVu Sans Regular 16"
   item_color = "#cccccc"
   selected_item_color = "#ffffff"
   icon_width = 32
@@ -48,5 +48,5 @@ terminal-border: "0"
   id = "__timeout__"
   text = "Booting in %d seconds"
   color = "#cccccc"
-  font = "Unifont Regular 16"
+  font = "DejaVu Sans Regular 16"
 }
diff --git a/config/theme-2k.txt b/config/theme-2k.txt
index 096eb06..1bc0124 100644
--- a/config/theme-2k.txt
+++ b/config/theme-2k.txt
@@ -19,7 +19,7 @@ terminal-border: "0"
   top = 30%
   width = 40%
   height = 40%
-  item_font = "Unifont Regular 24"
+  item_font = "DejaVu Sans Regular 24"
   item_color = "#cccccc"
   selected_item_color = "#ffffff"
   icon_width = 48
@@ -48,5 +48,5 @@ terminal-border: "0"
   id = "__timeout__"
   text = "Booting in %d seconds"
   color = "#cccccc"
-  font = "Unifont Regular 24"
+  font = "DejaVu Sans Regular 24"
 }
diff --git a/config/theme-4k.txt b/config/theme-4k.txt
index aeb38e0..40a8687 100644
--- a/config/theme-4k.txt
+++ b/config/theme-4k.txt
@@ -19,7 +19,7 @@ terminal-border: "0"
   top = 30%
   width = 40%
   height = 40%
-  item_font = "Unifont Regular 32"
+  item_font = "DejaVu Sans Regular 32"
   item_color = "#cccccc"
   selected_item_color = "#ffffff"
   icon_width = 64
@@ -48,5 +48,5 @@ terminal-border: "0"
   id = "__timeout__"
   text = "Booting in %d seconds"
   color = "#cccccc"
-  font = "Unifont Regular 32"
+  font = "DejaVu Sans Regular 32"
 }
diff --git a/config/theme-ultrawide.txt b/config/theme-ultrawide.txt
index acf2b79..40f8529 100644
--- a/config/theme-ultrawide.txt
+++ b/config/theme-ultrawide.txt
@@ -19,7 +19,7 @@ terminal-border: "0"
   top = 30%
   width = 40%
   height = 40%
-  item_font = "Unifont Regular 16"
+  item_font = "DejaVu Sans Regular 16"
   item_color = "#cccccc"
   selected_item_color = "#ffffff"
   icon_width = 32
@@ -48,5 +48,5 @@ terminal-border: "0"
   id = "__timeout__"
   text = "Booting in %d seconds"
   color = "#cccccc"
-  font = "Unifont Regular 16"
+  font = "DejaVu Sans Regular 16"
 }
diff --git a/config/theme-ultrawide2k.txt b/config/theme-ultrawide2k.txt
index 096eb06..1bc0124 100644
--- a/config/theme-ultrawide2k.txt
+++ b/config/theme-ultrawide2k.txt
@@ -19,7 +19,7 @@ terminal-border: "0"
   top = 30%
   width = 40%
   height = 40%
-  item_font = "Unifont Regular 24"
+  item_font = "DejaVu Sans Regular 24"
   item_color = "#cccccc"
   selected_item_color = "#ffffff"
   icon_width = 48
@@ -48,5 +48,5 @@ terminal-border: "0"
   id = "__timeout__"
   text = "Booting in %d seconds"
   color = "#cccccc"
-  font = "Unifont Regular 24"
+  font = "DejaVu Sans Regular 24"
 }