more lint

src/Consolonia.Core/Drawing/DrawingContextImpl.cs

@@ -140,10 +140,11 @@ public void DrawGeometry(IBrush brush, IPen pen, IGeometryImpl geometry)
                         CurrentClip.ExecuteWithClipping(new Point(px, py), () =>
                         {
                             _pixelBuffer.Set(new PixelBufferCoordinate((ushort)px, (ushort)py),
-                                (pixel, bb) =>
+                                (pixel, backgroundBrush) =>
                                 {
-                                    return pixel.Blend(new Pixel(new PixelBackground(bb.Mode, bb.Color)));
-                                }, ConsoleBrush.FromPosition(brush, x, y, (int)width, (int)height));
+                                    backgroundBrush = ConsoleBrush.FromPosition(brush, x, y, (int)width, (int)height);
+                                    return pixel.Blend(new Pixel(new PixelBackground(backgroundBrush.Mode, backgroundBrush.Color)));
+                                }, new ConsoleBrush(Colors.Transparent));
                         });
                     }
             }

src/Consolonia.Core/Drawing/PixelBufferImplementation/PixelForeground.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Diagnostics.CodeAnalysis;
 using Avalonia.Media;
 
 namespace Consolonia.Core.Drawing.PixelBufferImplementation

src/Consolonia.Core/Drawing/PixelBufferImplementation/PixelOperations.cs

@@ -83,9 +83,11 @@ public static Color Brighten(this Color foreground, Color background)
             }
         }
 
-        private static double GetPerceivedBrightness(Color color)
+        private static int GetPerceivedBrightness(Color color)
         {
-            return (0.299 * color.R + 0.587 * color.G + 0.114 * color.B);
+            return (int)(0.299 * color.R + 
+                         0.587 * color.G + 
+                         0.114 * color.B);
         }
     }
 }

src/Consolonia.Core/Drawing/RenderTarget.cs

@@ -112,11 +112,11 @@ private void RenderToDevice()
                         caretPosition = new PixelBufferCoordinate(x, y);
                     }
 
-                /* todo: There is not IWindowImpl.Invalidate anymore.
-                 if (!_consoleWindow.InvalidatedRects.Any(rect =>
-                    rect.ContainsExclusive(new Point(x, y)))) continue;*/
-                if (pixel.Background.Mode != PixelBackgroundMode.Colored)
-                    throw new InvalidOperationException("All pixels in the buffer must have exact console color before rendering");
+                    /* todo: There is not IWindowImpl.Invalidate anymore.
+                     if (!_consoleWindow.InvalidatedRects.Any(rect =>
+                        rect.ContainsExclusive(new Point(x, y)))) continue;*/
+                    if (pixel.Background.Mode != PixelBackgroundMode.Colored)
+                        throw new InvalidOperationException("All pixels in the buffer must have exact console color before rendering");
 
                     if (pixel.Foreground.Symbol is null) // not using 'when' as it swallows the exceptions 
                     {
@@ -126,7 +126,7 @@ private void RenderToDevice()
 
                     var pixelSpread = (pixel.Background.Color, pixel.Foreground.Color, pixel.Foreground.Weight, pixel.Foreground.Style, pixel.Foreground.TextDecorations, pixel.Foreground.Symbol.GetCharacter());
                     //todo: indexOutOfRange during resize
-                    if (_cache[x, y] == pixelSpread) 
+                    if (_cache[x, y] == pixelSpread)
                         continue;
 
                     _cache[x, y] = pixelSpread;