Fix Hex Editor font/highlight alignment under Mono

src/BizHawk.Client.EmuHawk/tools/HexEditor/HexEditor.cs

@@ -118,14 +118,18 @@ public HexEditor()
 			RecentTables = new RecentFiles(8);
 			DataSize = 1;
 
-			var font = new Font("Courier New", 8);
+			Font font = OSTailoredCode.IsUnixHost
+				? new("Liberation Mono", 9)
+				: new("Courier New", 8);
 
 			// Measure the font. There seems to be some extra horizontal padding on the first
 			// character so we'll see how much the width increases on the second character.
 			var fontSize1 = TextRenderer.MeasureText("0", font);
 			var fontSize2 = TextRenderer.MeasureText("00", font);
 			_fontWidth = fontSize2.Width - fontSize1.Width;
 			_fontHeight = fontSize1.Height;
+			const int MAGIC_FIX_NUMBER_H = 4; // don't wanna know
+			if (OSTailoredCode.IsUnixHost) _fontHeight -= MAGIC_FIX_NUMBER_H;
 
 			InitializeComponent();
 			Icon = Resources.PokeIcon;
@@ -1049,6 +1053,14 @@ private Point GetAddressCoordinates(long address)
 			var extra = (address % DataSize) * _fontWidth * 2;
 			var xOffset = AddressesLabel.Location.X + _fontWidth / 2 - 2;
 			var yOffset = AddressesLabel.Location.Y;
+			if (OSTailoredCode.IsUnixHost)
+			{
+				// don't wanna know
+				const int MAGIC_FIX_NUMBER_X = -2;
+				const int MAGIC_FIX_NUMBER_Y = 2;
+				xOffset += MAGIC_FIX_NUMBER_X;
+				yOffset += MAGIC_FIX_NUMBER_Y;
+			}
 
 			return new Point(
 				(int)((((address % 16) / DataSize) * (_fontWidth * (DataSize * 2 + 1))) + xOffset + extra),
@@ -1066,6 +1078,8 @@ private int GetTextOffset()
 			int start = (16 / DataSize) * _fontWidth * (DataSize * 2 + 1);
 			start += AddressesLabel.Location.X + _fontWidth / 2;
 			start += _fontWidth * 2;
+			const int MAGIC_FIX_NUMBER_X_ASCII = -3; // don't wanna know
+			if (OSTailoredCode.IsUnixHost) start += MAGIC_FIX_NUMBER_X_ASCII;
 			return start;
 		}