diff --git a/.gitignore b/.gitignore
index 2774109..8485e14 100644
--- a/.gitignore
+++ b/.gitignore
@@ -406,3 +406,8 @@ Makefile
 *.swo
 *.swn
 /build/compile_commands.json
+
+# rspektrum: PNG exports written by the app (E / --render) into the working dir
+spectrogram_full.png
+spectrogram_export.png
+*.orig
diff --git a/.qwen/settings.json.orig b/.qwen/settings.json.orig
deleted file mode 100644
index 398d16a..0000000
--- a/.qwen/settings.json.orig
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "permissions": {
-    "allow": [
-      "Bash(make)"
-    ]
-  }
-}
\ No newline at end of file
diff --git a/README.md b/README.md
index 9edee7e..3e6e258 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,8 @@ export either the picture (PNG) or the isolated audio (WAV). rspektrum runs thre
 ways: a native desktop app (C + raylib), a headless command-line renderer, and a
 WebAssembly build in the browser.
 
+![rspektrum spectrogram view with mLnL annotation overlay](resources/Screenshot.png)
+
 ---
 
 ## What it's for
diff --git a/resources/Screenshot.png b/resources/Screenshot.png
new file mode 100644
index 0000000..3c79dc4
Binary files /dev/null and b/resources/Screenshot.png differ
diff --git a/resources/wabbit_alpha.png b/resources/wabbit_alpha.png
deleted file mode 100644
index db4081f..0000000
Binary files a/resources/wabbit_alpha.png and /dev/null differ
diff --git a/spectrogram_export.png b/spectrogram_export.png
deleted file mode 100644
index a200fbf..0000000
Binary files a/spectrogram_export.png and /dev/null differ
diff --git a/spectrogram_full.png b/spectrogram_full.png
deleted file mode 100644
index ad0121b..0000000
Binary files a/spectrogram_full.png and /dev/null differ