diff --git a/frontend/main.c b/frontend/main.c
index 02c238485..4fcc17e4f 100644
--- a/frontend/main.c
+++ b/frontend/main.c
@@ -4244,6 +4244,7 @@ pipewire_backend_output_configure(struct weston_output *output)
 	struct weston_config *wc = wet_get_config(output->compositor);
 	struct weston_config_section *section;
 	char *gbm_format = NULL;
+	bool transparent_background = false;
 	int width;
 	int height;
 	int framerate = -1;
@@ -4261,6 +4262,13 @@ pipewire_backend_output_configure(struct weston_output *output)
 			  parsed_options);
 
 	weston_config_section_get_string(section, "gbm-format", &gbm_format, NULL);
+	weston_config_section_get_bool(section, "transparent-background",
+				       &transparent_background, false);
+
+	if (transparent_background) {
+		free(gbm_format);
+		gbm_format = strdup("argb8888");
+	}
 
 	wet_output_set_scale(output, section, 1, 0);
 	weston_output_set_transform(output, WL_OUTPUT_TRANSFORM_NORMAL);
diff --git a/kiosk-shell/kiosk-shell.c b/kiosk-shell/kiosk-shell.c
index 9560ec174..48d640c4d 100644
--- a/kiosk-shell/kiosk-shell.c
+++ b/kiosk-shell/kiosk-shell.c
@@ -718,7 +718,12 @@ kiosk_shell_output_recreate_background(struct kiosk_shell_output *shoutput)
 	curtain_params.r = ((bg_color >> 16) & 0xff) / 255.0;
 	curtain_params.g = ((bg_color >> 8) & 0xff) / 255.0;
 	curtain_params.b = ((bg_color >> 0) & 0xff) / 255.0;
-	curtain_params.a = 1.0;
+	curtain_params.a = ((bg_color >> 24) & 0xff) / 255.0;
+
+	if (curtain_params.a == 0.0) {
+		shoutput->curtain = NULL;
+		return;
+	}
 
 	curtain_params.pos = output->pos;
 	curtain_params.width = output->width;
diff --git a/libweston/backend-pipewire/pipewire.c b/libweston/backend-pipewire/pipewire.c
index 9921f958b..6c9f0d22a 100644
--- a/libweston/backend-pipewire/pipewire.c
+++ b/libweston/backend-pipewire/pipewire.c
@@ -200,6 +200,8 @@ spa_video_format_from_drm_fourcc(uint32_t fourcc)
 	switch (fourcc) {
 	case DRM_FORMAT_XRGB8888:
 		return SPA_VIDEO_FORMAT_BGRx;
+	case DRM_FORMAT_ARGB8888:
+		return SPA_VIDEO_FORMAT_BGRA;
 	case DRM_FORMAT_RGB565:
 		return SPA_VIDEO_FORMAT_RGB16;
 	default: