diff --git a/css/customizer-snippets.css b/css/customizer-snippets.css
index 06fe232c..271f9fb4 100644
--- a/css/customizer-snippets.css
+++ b/css/customizer-snippets.css
@@ -219,3 +219,11 @@
   --ms: 100% var(--f), 100% var(--f), 100% calc(100% - calc(var(--f) * 2 - 2px));
   --mp: top left, bottom left, top calc(var(--f) - 1px) left 0;
 }
+
+.main__background::before {
+  --c: clamp(17px, 2.0356234097vw + 9.3664122137px, 25px);
+  --d: clamp(20px, 2.0356234097vw + 12.3664122137px, 28px);
+  --mi: url("../img/grunge-top-a.svg"), var(--data-image-2x2-black), url("../img/flipped-grunge-top-a.svg");
+  --ms: 100% var(--d), 100% calc(100% - var(--c) * 2), 100% var(--d);
+  --mp: top calc(-1 * clamp(0px, 0.5089058524vw - 1.9083969466px, 2px)) left 0, top var(--c) left 0, bottom left;
+}
diff --git a/img/flipped-grunge-top-a.svg b/img/flipped-grunge-top-a.svg
new file mode 100644
index 00000000..6739d62c
--- /dev/null
+++ b/img/flipped-grunge-top-a.svg
@@ -0,0 +1 @@
+<svg preserveAspectRatio="none" viewBox="0 0 2734 85" xmlns="http://www.w3.org/2000/svg"><path d="m4323 816c-85-18-73-26 40-26 60 0 107-4 107-9s10-13 23-16c43-12 77-28 77-35 0-4-36-10-81-13-44-4-116-16-159-28-73-19-90-20-217-11-81 5-167 6-207 1-110-14-103-20 40-38 102-12 206-41 211-57 2-6-13-14-34-18-59-9-281-7-348 4-94 16-415 48-705 71-188 14-301 19-390 14-97-5-138-3-184 9-32 9-150 27-262 41-113 14-228 30-257 36-64 14-177 28-279 35-72 6-78 5-78-13 0-46-123-78-280-73-264 9-859 5-955-7-55-7-164-15-242-19l-143-7v-328-329h13670 13670v209 208l-82 9c-46 5-123 7-172 5-73-3-92-7-109-24-19-19-27-20-246-13-124 5-404 10-621 12-352 4-476 9-827 30-51 3-93 10-93 15s11 9 24 9c14 0 28 5 31 10 4 6-6 10-22 10-15 0-120 5-233 10-215 9-314 24-307 43 3 9-77 15-293 22-236 8-301 13-315 25-15 12-61 14-289 12-307-3-338-9-412-73-25-21-57-42-72-46s-133-1-262 6c-534 28-792 24-924-13-32-9-104-21-159-27-127-13-177-23-307-59-58-16-121-32-140-35-30-6-42-18-85-81l-50-75-45 6c-25 4-128 22-230 40-273 50-323 55-533 55-106 0-271 7-367 14-160 13-278 9-240-7 8-4 77-16 153-26 135-19 157-24 144-37-3-3-131-1-284 6s-323 11-378 9c-69-3-103-1-110 8-23 27-499 58-515 33-5-8-52-16-139-23-72-6-131-14-131-18 0-3 38-25 85-47 73-36 85-45 85-66 0-19-9-30-32-42-27-14-51-16-145-10-147 8-199 20-269 62-31 19-82 41-113 50-31 8-79 22-108 30-45 12-52 18-55 42-3 23-15 33-83 67-69 34-80 44-83 68-2 16-9 30-15 32-7 2-76 9-153 15-148 11-510 2-799-21-103-8-232-8-490 0-369 12-452 20-472 47-10 13-56 19-265 34-339 24-616 35-603 23 6-5 82-23 171-41 186-36 268-64 291-98 8-14 14-27 11-29-3-3-72-8-154-11-146-6-154-5-354 34-278 55-325 60-630 66-146 3-346 12-445 20-250 20-569 24-549 8 10-9 428-138 482-148 39-8 40-18 7-40-18-12-24-22-20-35 7-21 10-20-100-25-75-3-199 18-625 105-135 28-317 60-405 72s-182 30-210 40c-86 32-175 49-325 60-145 12-255 5-253-16 1-5 68-26 150-46 167-41 223-62 223-82 0-10-18-16-61-20-49-4-99 3-261 39-278 62-358 91-358 130 0 9-38 14-137 18-201 9-539 35-683 52-92 11-345 17-965 25-888 11-2448 5-2453-9-1-5 9-14 23-20s25-18 25-27c0-35-186-9-321 46-80 32-117 41-219 51l-123 12-16-23c-47-69-57-74-129-66-102 10-208 32-247 51-19 9-44 31-55 49-28 45-92 70-230 91-105 15-121 16-190 2-56-12-187-18-520-24-681-13-743-12-763 7-8 9-34 19-56 23-57 9-51 26 8 26 28 0 53 5 56 10 4 7-60 10-184 10-104 0-195 2-203 4-7 2-36-2-65-8zm-2560-147c58-16 44-29-32-29-87 0-131 9-131 26s106 19 163 3zm2907-28c0-5-24-12-53-15-52-7-53-8-49-36l4-30-83 1c-46 0-93 4-104 8-19 8-19 8 2 19 12 7 40 12 62 12 26 0 46 7 58 19 10 10 25 21 33 24 25 9 130 8 130-2zm-3072-27c78-10 63-24-25-24-84 0-123 7-123 21 0 10 72 12 148 3zm3357-4c3-6-5-10-19-10s-28 5-31 10c-3 6 5 10 19 10s28-4 31-10zm100-10c3-5-1-10-9-10s-18 5-21 10c-3 6 1 10 9 10s18-4 21-10zm-2817-16c12-4 22-14 22-24 0-16-7-18-62-14-118 9-163 15-178 24-13 9-13 11 0 21 15 10 172 6 218-7zm2967-40c105-7 208-14 229-14 38 0 39 0 21 20s-17 20 48 20c70 0 89-14 37-25-58-13-18-25 82-25 104 0 379-34 410-51 28-15 21-27-19-35-72-13-455 6-723 36-146 16-321 32-390 36-145 6-221 29-193 58 9 9 237 0 498-20zm18840-45c5-5-13-9-42-9-49 0-70 9-56 23 8 9 85-3 98-14zm459 12c6-10-172-26-182-16-4 3 0 10 8 15 19 12 167 13 174 1zm-2515-127c56-11 33-24-44-24-60 0-75 3-75 15 0 16 59 21 119 9zm-7481-26c-6-18-44-26-131-27-58-1-78 2-75 11 6 18 44 26 131 27 58 1 78-2 75-11zm7817 2c3-5 1-10-4-10-6 0-11 5-11 10 0 6 2 10 4 10 3 0 8-4 11-10zm150-10c4-6-18-10-59-10-36 0-68 5-71 10-4 6 18 10 59 10 36 0 68-4 71-10zm150-10c4-6-6-10-24-10-16 0-33 5-36 10-4 6 6 10 24 10 16 0 33-4 36-10zm457-10c58 0 37-17-32-25-61-7-130 7-130 27 0 7 21 9 61 4 34-3 80-6 101-6zm508-29c0-11-51-21-111-21-52 0-67 16-21 23 53 8 132 7 132-2zm3480-6c0-29-37-36-160-29-66 4-120 10-120 14 0 8 141 26 223 28 44 2 57-1 57-13z" transform="matrix(-.1 0 0 .1 2734 0)" xmlns="http://www.w3.org/2000/svg"/></svg>
diff --git a/includes/functions/_customizer-settings.php b/includes/functions/_customizer-settings.php
index 4381da95..4a2ab12f 100644
--- a/includes/functions/_customizer-settings.php
+++ b/includes/functions/_customizer-settings.php
@@ -2475,7 +2475,7 @@ function fictioneer_add_header_customizer_settings( $manager ) {
         'polygon-battered' => _x( 'Battered', 'Customizer header image style option.', 'fictioneer' ),
         'mask-grunge-frame-a-small' => _x( 'Grunge Frame (Small)', 'Customizer header image style option.', 'fictioneer' ),
         'mask-grunge-frame-a-large' => _x( 'Grunge Frame (Large)', 'Customizer header image style option.', 'fictioneer' ),
-        'polygon-mask-image-custom-css' => _x( 'Custom CSS', 'Customizer page style option.', 'fictioneer' )
+        'polygon-mask-image-custom-css' => _x( 'Custom CSS', 'Customizer header image style option.', 'fictioneer' )
       )
     )
   );
@@ -2838,6 +2838,7 @@ function fictioneer_add_layout_customizer_settings( $manager ) {
         'mask-image-wave-a' => _x( 'Wave', 'Customizer page style option.', 'fictioneer' ),
         'mask-image-layered-steps-a' => _x( 'Layered Steps', 'Customizer page style option.', 'fictioneer' ),
         'mask-image-layered-peaks-a' => _x( 'Layered Peaks', 'Customizer page style option.', 'fictioneer' ),
+        'mask-image-grunge-a' => _x( 'Grunge', 'Customizer page style option.', 'fictioneer' ),
         'polygon-mask-image-custom-css' => _x( 'Custom CSS', 'Customizer page style option.', 'fictioneer' )
       )
     )
diff --git a/includes/functions/_customizer.php b/includes/functions/_customizer.php
index 218f8d15..95cb01e4 100644
--- a/includes/functions/_customizer.php
+++ b/includes/functions/_customizer.php
@@ -1062,6 +1062,16 @@ function fictioneer_build_customize_css( $content = null ) {
     }';
   }
 
+  if ( $page_style === 'mask-image-grunge-a' ) {
+    $css .= '.main__background::before {
+      --c: clamp(17px, 2.0356234097vw + 9.3664122137px, 25px);
+      --d: clamp(20px, 2.0356234097vw + 12.3664122137px, 28px);
+      --mi: url("../img/grunge-top-a.svg"), var(--data-image-2x2-black), url("../img/flipped-grunge-top-a.svg");
+      --ms: 100% var(--d), 100% calc(100% - var(--c) * 2), 100% var(--d);
+      --mp: top calc(-1 * clamp(0px, 0.5089058524vw - 1.9083969466px, 2px)) left 0, top var(--c) left 0, bottom left;
+    }';
+  }
+
   // --- Page shadow -----------------------------------------------------------
 
   if ( ! get_theme_mod( 'page_shadow' ) ) {
diff --git a/src/scss/customizer-snippets.scss b/src/scss/customizer-snippets.scss
index 4bb09f12..5f441b85 100644
--- a/src/scss/customizer-snippets.scss
+++ b/src/scss/customizer-snippets.scss
@@ -306,3 +306,13 @@
     --mp: top left, bottom left, top calc(var(--f) - 1px) left 0;
   }
 }
+
+.main__background {
+  &::before {
+    --c: #{get_clamp(17, 25, 375, 768)};
+    --d: #{get_clamp(20, 28, 375, 768)};
+    --mi: url('../img/grunge-top-a.svg'), var(--data-image-2x2-black), url("../img/flipped-grunge-top-a.svg");
+    --ms: 100% var(--d), 100% calc(100% - var(--c) * 2), 100% var(--d);
+    --mp: top calc(-1 * #{get_clamp(0, 2, 375, 768)}) left 0, top var(--c) left 0, bottom left;
+  }
+}