diff --git a/.github/social-preview.png b/.github/social-preview.png
new file mode 100644
index 0000000..19b2d57
Binary files /dev/null and b/.github/social-preview.png differ
diff --git a/README.md b/README.md
index 7ee35d0..a3d5ba0 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,7 @@
+<p align="center">
+  <img src="https://raw.githubusercontent.com/ericstj/PrivacyFilter.Net/main/eng/icon.png" alt="PrivacyFilter.Net logo" width="128" height="128">
+</p>
+
 # PrivacyFilter.Net
 
 A managed C# port of the inference API and decoding pipeline from
diff --git a/eng/icon.png b/eng/icon.png
new file mode 100644
index 0000000..c7e75ed
Binary files /dev/null and b/eng/icon.png differ
diff --git a/eng/make-icon.py b/eng/make-icon.py
new file mode 100644
index 0000000..4112324
--- /dev/null
+++ b/eng/make-icon.py
@@ -0,0 +1,72 @@
+"""Generates the PrivacyFilter.Net package icon (original artwork).
+
+A rounded-square gradient badge containing a shield with text lines and a
+highlighted sensitive span. Represents privacy-aware text filtering and
+redaction. Intentionally distinct from any upstream logo.
+"""
+from pathlib import Path
+
+from PIL import Image, ImageDraw
+
+S = 512  # supersample, downscaled at the end
+img = Image.new("RGBA", (S, S), (0, 0, 0, 0))
+draw = ImageDraw.Draw(img)
+
+# Vertical gradient background: indigo -> teal
+top = (79, 70, 229)      # #4F46E5
+bot = (14, 165, 165)     # #0EA5A5
+for y in range(S):
+    t = y / (S - 1)
+    r = round(top[0] + (bot[0] - top[0]) * t)
+    g = round(top[1] + (bot[1] - top[1]) * t)
+    b = round(top[2] + (bot[2] - top[2]) * t)
+    draw.line([(0, y), (S, y)], fill=(r, g, b, 255))
+
+# Rounded-square mask
+radius = int(S * 0.22)
+mask = Image.new("L", (S, S), 0)
+ImageDraw.Draw(mask).rounded_rectangle([0, 0, S - 1, S - 1], radius=radius, fill=255)
+img.putalpha(mask)
+
+draw = ImageDraw.Draw(img)
+
+white = (255, 255, 255, 255)
+text = (79, 70, 229, 255)
+accent = (245, 197, 66, 255)
+
+# Shield - represents protection of sensitive text.
+shield = [
+    (int(S * 0.50), int(S * 0.14)),
+    (int(S * 0.79), int(S * 0.25)),
+    (int(S * 0.76), int(S * 0.57)),
+    (int(S * 0.68), int(S * 0.72)),
+    (int(S * 0.50), int(S * 0.86)),
+    (int(S * 0.32), int(S * 0.72)),
+    (int(S * 0.24), int(S * 0.57)),
+    (int(S * 0.21), int(S * 0.25)),
+]
+draw.polygon(shield, fill=white)
+
+# Text lines inside the shield. The accent bar represents detected/redacted PII.
+lx = int(S * 0.33)
+lh = int(S * 0.045)
+line_radius = lh // 2
+draw.rounded_rectangle(
+    [lx, int(S * 0.34), int(S * 0.68), int(S * 0.34) + lh],
+    radius=line_radius,
+    fill=text,
+)
+draw.rounded_rectangle(
+    [lx, int(S * 0.46), int(S * 0.71), int(S * 0.46) + int(S * 0.07)],
+    radius=int(S * 0.025),
+    fill=accent,
+)
+draw.rounded_rectangle(
+    [lx, int(S * 0.61), int(S * 0.61), int(S * 0.61) + lh],
+    radius=line_radius,
+    fill=text,
+)
+
+out = img.resize((128, 128), Image.Resampling.LANCZOS)
+out.save(Path(__file__).with_name("icon.png"), "PNG")
+print("wrote eng/icon.png")
diff --git a/src/PrivacyFilter.Net/PrivacyFilter.Net.csproj b/src/PrivacyFilter.Net/PrivacyFilter.Net.csproj
index ab454bc..f276f14 100644
--- a/src/PrivacyFilter.Net/PrivacyFilter.Net.csproj
+++ b/src/PrivacyFilter.Net/PrivacyFilter.Net.csproj
@@ -13,13 +13,15 @@
 
   <PropertyGroup Label="Packaging">
     <PackageId>PrivacyFilter.Net</PackageId>
-    <Version>0.1.0</Version>
+    <Version>0.1.1</Version>
     <EnablePackageValidation>true</EnablePackageValidation>
+    <PackageValidationBaselineVersion>0.1.0</PackageValidationBaselineVersion>
     <Authors>ericstj</Authors>
     <Description>Managed .NET inference API for OpenAI Privacy Filter, using the official ONNX model with o200k_base tokenization and constrained BIOES decoding.</Description>
     <PackageTags>privacy;pii;redaction;token-classification;onnx;nlp;machine-learning</PackageTags>
     <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
     <PackageReadmeFile>README.md</PackageReadmeFile>
+    <PackageIcon>icon.png</PackageIcon>
     <PackageProjectUrl>https://github.com/ericstj/PrivacyFilter.Net</PackageProjectUrl>
     <RepositoryUrl>https://github.com/ericstj/PrivacyFilter.Net</RepositoryUrl>
     <RepositoryType>git</RepositoryType>
@@ -31,6 +33,7 @@
 
   <ItemGroup>
     <None Include="..\..\README.md" Pack="true" PackagePath="\" Link="README.md" />
+    <None Include="..\..\eng\icon.png" Pack="true" PackagePath="\" />
     <None Include="..\..\THIRD-PARTY-NOTICES.md" Pack="true" PackagePath="\" />
   </ItemGroup>