M src/systray/systraybar.c → src/systray/systraybar.c

@@ -301,6 +301,15 @@ int hide = 0;
 
 	error = FALSE;
 	old = XSetErrorHandler(window_error_handler);
+	XWindowAttributes attr;
+	XGetWindowAttributes(server.dsp, id, &attr);
+	if ( attr.depth != server.depth ) {
+		XSetWindowAttributes a;
+		a.background_pixmap = None;  // set to none, otherwise XReparentWindow fails...
+		a.background_pixel = 0;      // set background pixel to 0. Looks ugly, but at least the icon appears
+		// TODO: maybe the XShape extension can be used, to clip the icon
+		XChangeWindowAttributes(server.dsp, id, CWBackPixmap|CWBackPixel, &a);
+	}
 	XReparentWindow(server.dsp, id, panel->main_win, 0, 0);
 	XSync(server.dsp, False);
 	XSetErrorHandler(old);

M src/tooltip/tooltip.c → src/tooltip/tooltip.c

@@ -217,6 +217,7 @@ c = cairo_create(cs);
 	Color bc = g_tooltip.background_color;
 	Border b = g_tooltip.border;
 	if (real_transparency) {
+		clear_pixmap(g_tooltip.window, 0, 0, width, height);
 		draw_rect(c, b.width, b.width, width-2*b.width, height-2*b.width, b.rounded-b.width/1.571);
 		cairo_set_source_rgba(c, bc.color[0], bc.color[1], bc.color[2], bc.alpha);
 	}