diff --git a/HyperDRM.manifest.json b/HyperDRM.manifest.json
index 691894f..29a926a 100644
--- a/HyperDRM.manifest.json
+++ b/HyperDRM.manifest.json
@@ -1,15 +1,15 @@
 {
   "id": "org.webosbrew.histogramhyperion",
-  "version": "0.13.1",
+  "version": "0.13.2",
   "type": "web",
   "title": "HyperDRM",
   "appDescription": "Ambient lighting for webOS, Hyperion and HyperHDR",
   "iconUri": "https://gitea.adnau.de/matze19999/HyperDRM/raw/branch/main/app/icon.png",
   "sourceUrl": "https://gitea.adnau.de/matze19999/HyperDRM",
   "rootRequired": true,
-  "ipkUrl": "https://gitea.adnau.de/matze19999/HyperDRM/raw/branch/main/HyperDRM_0.13.1_arm.ipk",
+  "ipkUrl": "https://gitea.adnau.de/matze19999/HyperDRM/raw/branch/main/HyperDRM_0.13.2_arm.ipk",
   "ipkHash": {
-    "sha256": "7ee27c6c8c0f7649690f1eb6e055b0add5ba2e57461cec58cbc8e144316af1d6"
+    "sha256": "d83eed088b5a1cc8a90d96bc781359db219aa50f51218e3ae3c2ef52510f6ed7"
   },
-  "ipkSize": 1207854
+  "ipkSize": 1207844
 }
diff --git a/HyperDRM_0.13.1_arm.ipk b/HyperDRM_0.13.2_arm.ipk
similarity index 95%
rename from HyperDRM_0.13.1_arm.ipk
rename to HyperDRM_0.13.2_arm.ipk
index eb80875..7df99f9 100644
Binary files a/HyperDRM_0.13.1_arm.ipk and b/HyperDRM_0.13.2_arm.ipk differ
diff --git a/README.md b/README.md
index 0ff342f..c6187d6 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ Only the own service is modified. Optional Auto PicCap can configure its receive
 
 ## Installation
 
-The current package is [HyperDRM_0.13.1_arm.ipk](HyperDRM_0.13.1_arm.ipk). Install it using the TV's webOS/Homebrew package installation workflow.
+The current package is [HyperDRM_0.13.2_arm.ipk](HyperDRM_0.13.2_arm.ipk). Install it using the TV's webOS/Homebrew package installation workflow.
 
 Elevate the installed own service through Homebrew Channel:
 
@@ -234,4 +234,4 @@ and briefly interrupts ambient lighting; it never runs automatically.
 receiver-output and simulated service-lifecycle tests with ASan/UBSan. These host
 tests do not replace real LG capture and remote-control validation on a TV.
 
-Histogram near-black handling suppresses colors with a maximum RGB channel of 12 or less, gradually restores brightness between 12 and 24, and preserves brighter colors. This applies only to histogram output; PicCap, receiver calibration and raw calibration samples are unchanged.
+Histogram near-black handling suppresses colors with a maximum RGB channel of 16 or less, gradually restores brightness between 16 and 32, and preserves brighter colors. This applies only to histogram output; PicCap, receiver calibration and raw calibration samples are unchanged.
diff --git a/VERSION b/VERSION
index c317a91..9beb74d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.13.1
+0.13.2
diff --git a/app/appinfo.json b/app/appinfo.json
index 4a5826a..e8a6f14 100644
--- a/app/appinfo.json
+++ b/app/appinfo.json
@@ -1,6 +1,6 @@
 {
   "id": "org.webosbrew.histogramhyperion",
-  "version": "0.13.1",
+  "version": "0.13.2",
   "vendor": "Local development",
   "type": "web",
   "main": "index.html",
diff --git a/app/version.js b/app/version.js
index ffa86a7..fd9640d 100644
--- a/app/version.js
+++ b/app/version.js
@@ -1,2 +1,2 @@
 'use strict';
-var HYPERDRM_APP_VERSION = '0.13.1';
+var HYPERDRM_APP_VERSION = '0.13.2';
diff --git a/docs/release-0.13.2.md b/docs/release-0.13.2.md
new file mode 100644
index 0000000..45143b8
--- /dev/null
+++ b/docs/release-0.13.2.md
@@ -0,0 +1,3 @@
+# HyperDRM 0.13.2
+
+Raise the histogram black cutoff to 16 and extend the proportional transition to 32. Live measurements showed raw [13,14,7] causing residual [1,1,0] to [2,2,1] at the bottom-right LEDs with the previous cutoff. Regression coverage now includes this sample. Brighter colors, PicCap and saved settings remain unchanged; very dark detail is suppressed more strongly.
diff --git a/native/dark_color.h b/native/dark_color.h
index c2cb6e7..bd3995f 100644
--- a/native/dark_color.h
+++ b/native/dark_color.h
@@ -7,10 +7,10 @@ static inline void dark_color_filter(unsigned char color[3]) {
     for (unsigned c = 1; c < 3; c++)
         if (color[c] > peak)
             peak = color[c];
-    if (peak >= 24)
+    if (peak >= 32)
         return;
-    unsigned gain = peak > 12 ? peak - 12 : 0;
+    unsigned gain = peak > 16 ? peak - 16 : 0;
     for (unsigned c = 0; c < 3; c++)
-        color[c] = (unsigned char)((color[c] * gain + 6) / 12);
+        color[c] = (unsigned char)((color[c] * gain + 8) / 16);
 }
 #endif
diff --git a/native/test_dark_color.c b/native/test_dark_color.c
index b94ff31..385c9ee 100644
--- a/native/test_dark_color.c
+++ b/native/test_dark_color.c
@@ -5,17 +5,20 @@ int main(void) {
     for (unsigned v = 0; v <= 255; v++) {
         unsigned char gray[3] = {v, v, v};
         dark_color_filter(gray);
-        unsigned expected = v <= 12 ? 0 : v >= 24 ? v : (v * (v - 12) + 6) / 12;
+        unsigned expected = v <= 16 ? 0 : v >= 32 ? v : (v * (v - 16) + 8) / 16;
         for (unsigned c = 0; c < 3; c++) assert(gray[c] == expected);
     }
     unsigned char residual[3] = {4, 8, 2};
     dark_color_filter(residual);
     assert(!residual[0] && !residual[1] && !residual[2]);
-    unsigned char transition[3] = {9, 18, 6};
+    unsigned char measured[3] = {13, 14, 7};
+    dark_color_filter(measured);
+    assert(!measured[0] && !measured[1] && !measured[2]);
+    unsigned char transition[3] = {12, 24, 8};
     dark_color_filter(transition);
-    assert(transition[0] == 5 && transition[1] == 9 && transition[2] == 3);
-    unsigned char saturated[3] = {0, 24, 0};
+    assert(transition[0] == 6 && transition[1] == 12 && transition[2] == 4);
+    unsigned char saturated[3] = {0, 32, 0};
     dark_color_filter(saturated);
-    assert(saturated[0] == 0 && saturated[1] == 24 && saturated[2] == 0);
+    assert(saturated[0] == 0 && saturated[1] == 32 && saturated[2] == 0);
     puts("PASS: near-black suppression, gradual transition, unchanged brighter colors");
 }
diff --git a/native/version.h b/native/version.h
index 52bdd06..1263c46 100644
--- a/native/version.h
+++ b/native/version.h
@@ -1,4 +1,4 @@
 #ifndef HYPERDRM_VERSION_H
 #define HYPERDRM_VERSION_H
-#define HYPERDRM_VERSION "0.13.1"
+#define HYPERDRM_VERSION "0.13.2"
 #endif
diff --git a/package/packageinfo.json b/package/packageinfo.json
index 16a6b20..b8bf389 100644
--- a/package/packageinfo.json
+++ b/package/packageinfo.json
@@ -1,6 +1,6 @@
 {
   "id": "org.webosbrew.histogramhyperion",
-  "version": "0.13.1",
+  "version": "0.13.2",
   "vendor": "Local development",
   "app": "org.webosbrew.histogramhyperion",
   "services": [
diff --git a/service/histogram-service b/service/histogram-service
index 58a1526..3a0fa27 100644
Binary files a/service/histogram-service and b/service/histogram-service differ