removing submodule

depends/rpi-rgb-led-matrix/bindings/c#/examples/PulsingBrightness/Program.cs

@@ -0,0 +1,33 @@
+using RPiRgbLEDMatrix;
+
+using var matrix = new RGBLedMatrix(new RGBLedMatrixOptions { Rows = 32, Cols = 64 });
+var canvas = matrix.CreateOffscreenCanvas();
+
+var maxBrightness = matrix.Brightness;
+var rnd = new Random();
+
+// run until user presses Ctrl+C
+var running = true;
+Console.CancelKeyPress += (_, e) =>
+{
+    running = false;
+    e.Cancel = true; // do not terminate program with Ctrl+C, we need to dispose
+};
+
+var color = new Color(rnd.Next(0, 256), rnd.Next(0, 256), rnd.Next(0, 256));
+while (running)
+{
+    if (matrix.Brightness < 1)
+    {
+        matrix.Brightness = maxBrightness;
+        color = new Color(rnd.Next(0, 256), rnd.Next(0, 256), rnd.Next(0, 256));
+    }
+    else
+    {
+        matrix.Brightness--;
+    }
+
+    canvas.Fill(color);
+    matrix.SwapOnVsync(canvas);
+    Thread.Sleep(20);
+}

depends/rpi-rgb-led-matrix/bindings/c#/examples/PulsingBrightness/PulsingBrightness.csproj

@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+	<PropertyGroup>
+		<OutputType>Exe</OutputType>
+		<TargetFramework>net6.0</TargetFramework>
+		<ImplicitUsings>enable</ImplicitUsings>
+		<Nullable>enable</Nullable>
+	</PropertyGroup>
+    <ItemGroup>
+        <ProjectReference Include="..\..\RPiRgbLEDMatrix.csproj"/>
+    </ItemGroup>
+</Project>