diff --git a/config.c b/config.c
index b7bc1f09..51fa5b87 100644
--- a/config.c
+++ b/config.c
@@ -2569,6 +2569,9 @@ parse_section_tweak(struct context *ctx)
     else if (streq(key, "bold-text-in-bright-amount"))
         return value_to_float(ctx, &conf->bold_in_bright.amount);
 
+    else if (strcmp(key, "transparent_fullscreen") == 0)
+        return value_to_bool(ctx, &conf->tweak.transparent_fullscreen);
+
     else {
         LOG_CONTEXTUAL_ERR("not a valid option: %s", key);
         return false;
@@ -3158,6 +3161,7 @@ config_load(struct config *conf, const char *conf_path,
             .box_drawing_solid_shades = true,
             .font_monospace_warn = true,
             .sixel = true,
+            .transparent_fullscreen = false,
         },
 
         .touch = {
diff --git a/config.h b/config.h
index 4ce36486..1b82f7af 100644
--- a/config.h
+++ b/config.h
@@ -368,6 +368,7 @@ struct config {
         bool box_drawing_solid_shades;
         bool font_monospace_warn;
         bool sixel;
+        bool transparent_fullscreen;
     } tweak;
 
     struct {
diff --git a/doc/foot.ini.5.scd b/doc/foot.ini.5.scd
index b9e1e70e..068856eb 100644
--- a/doc/foot.ini.5.scd
+++ b/doc/foot.ini.5.scd
@@ -1507,6 +1507,10 @@ any of these options.
 	*bold-text-in-bright* is set to *yes* (the *palette-based* variant
 	is not affected by this option). Default: _1.3_.
 
+*transparent_fullscreen*
+	Boolean. When enabled, foot will not disable the alpha channel when
+	in fullscreen state. Default: _no_
+
 # SEE ALSO
 
 *foot*(1), *footclient*(1)
diff --git a/render.c b/render.c
index fd7e743a..bb1b0865 100644
--- a/render.c
+++ b/render.c
@@ -538,7 +538,7 @@ render_cell(struct terminal *term, pixman_image_t *pix, pixman_region32_t *damag
         }
 
         else if (cell->attrs.bg_src == COLOR_DEFAULT) {
-            if (term->window->is_fullscreen) {
+            if (term->window->is_fullscreen && !term->conf->tweak.transparent_fullscreen) {
                 /*
                  * Note: disable transparency when fullscreened.
                  *
@@ -2900,8 +2900,7 @@ grid_render(struct terminal *term)
     xassert(term->height > 0);
 
     struct buffer_chain *chain = term->render.chains.grid;
-    bool use_alpha = !term->window->is_fullscreen &&
-                     term->colors.alpha != 0xffff;
+    bool use_alpha = term->colors.alpha != 0xffff;
     struct buffer *buf = shm_get_buffer(
         chain, term->width, term->height, use_alpha);