diff --git a/render-process/RegisterNode.ts b/render-process/RegisterNode.ts
index bda884e..952803c 100644
--- a/render-process/RegisterNode.ts
+++ b/render-process/RegisterNode.ts
@@ -131,6 +131,20 @@ export default function (settings: Settings) {
                     name: "node-icon",
                 });
 
+                // debug
+                if (cfg.debug) {
+                    group.addShape("image", {
+                        attrs: {
+                            x: x0 + 182,
+                            y: y0 + 2,
+                            height: 14,
+                            width: 14,
+                            img: `./static/icons/Debug.svg`,
+                        },
+                        name: "node-icon",
+                    });
+                }
+
                 // name text
                 group.addShape("text", {
                     attrs: {
diff --git a/static/icons/Debug.svg b/static/icons/Debug.svg
new file mode 100644
index 0000000..59c05ab
--- /dev/null
+++ b/static/icons/Debug.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" class="ionicon" viewBox="0 0 512 512"><path d="M370 378c28.89 23.52 46 46.07 46 86M142 378c-28.89 23.52-46 46.06-46 86M384 208c28.89-23.52 32-56.07 32-96M128 206c-28.89-23.52-32-54.06-32-94M464 288.13h-80M128 288.13H48M256 192v256" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="32"/><path d="M256 448h0c-70.4 0-128-57.6-128-128v-96.07c0-65.07 57.6-96 128-96h0c70.4 0 128 25.6 128 96V320c0 70.4-57.6 128-128 128z" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="32"/><path d="M179.43 143.52a49.08 49.08 0 01-3.43-15.73A80 80 0 01255.79 48h.42A80 80 0 01336 127.79a41.91 41.91 0 01-3.12 14.3" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="32"/></svg>
\ No newline at end of file