Support dark mode

.editorconfig

@@ -2,3 +2,6 @@
 
 # WFO5002: Type is for evaluation purposes only and is subject to change or removal in future updates. Suppress this diagnostic to proceed.
 dotnet_diagnostic.WFO5002.severity = none
+
+# WFO5001: Type is for evaluation purposes only and is subject to change or removal in future updates. Suppress this diagnostic to proceed.
+dotnet_diagnostic.WFO5001.severity = none

AzTagger/AzureContextConfigDialog.cs

@@ -4,6 +4,7 @@
 using AzTagger.Models;
 using System;
 using System.Collections.Generic;
+using System.Drawing;
 using System.Windows.Forms;
 
 namespace AzTagger;
@@ -23,6 +24,22 @@ public AzureContextConfigDialog(Settings settings)
 
         _dataGridView.AutoGenerateColumns = false;
         _dataGridView.DataSource = _tempAzureContexts;
+
+        if (Application.IsDarkModeEnabled)
+        {
+            _dataGridView.BackgroundColor = Color.FromArgb(30, 30, 30);
+            _dataGridView.ForeColor = Color.White;
+            _dataGridView.GridColor = Color.FromArgb(45, 45, 45);
+            _dataGridView.DefaultCellStyle.BackColor = Color.FromArgb(30, 30, 30);
+            _dataGridView.DefaultCellStyle.ForeColor = Color.White;
+            _dataGridView.DefaultCellStyle.SelectionBackColor = Color.FromArgb(51, 153, 255);
+            _dataGridView.DefaultCellStyle.SelectionForeColor = Color.Black;
+            _dataGridView.ColumnHeadersDefaultCellStyle.BackColor = Color.FromArgb(45, 45, 45);
+            _dataGridView.ColumnHeadersDefaultCellStyle.ForeColor = Color.White;
+            _dataGridView.EnableHeadersVisualStyles = false;
+            _dataGridView.AlternatingRowsDefaultCellStyle.BackColor = Color.FromArgb(45, 45, 45);
+            _dataGridView.AlternatingRowsDefaultCellStyle.ForeColor = Color.White;
+        }
     }
 
     private void Form_Load(object sender, EventArgs e)

AzTagger/MainForm.cs

@@ -176,6 +176,11 @@ public MainForm(Settings settings)
         _tooltipTimer = new Timer();
         _tooltipTimer.Interval = _toolTip.AutomaticDelay;
         _tooltipTimer.Tick += ToolTipTimer_Tick;
+
+        if (Application.IsDarkModeEnabled)
+        {
+            SetLinkLabelColors(this, Color.LightBlue, Color.DeepSkyBlue);
+        }
     }
 
     private void InitializeResultsDataGridViewContextMenu()
@@ -242,7 +247,22 @@ private void InitializeResultsDataGridView()
         _gvwResults.MouseLeave += DataGridView_Results_MouseLeave;
         _gvwResults.DataSource = new List<Resource>();
 
-        // Prevent automatic sorting when a column header is double-clicked
+        if (Application.IsDarkModeEnabled)
+        {
+            _gvwResults.BackgroundColor = Color.FromArgb(30, 30, 30);
+            _gvwResults.ForeColor = Color.White;
+            _gvwResults.GridColor = Color.FromArgb(45, 45, 45);
+            _gvwResults.DefaultCellStyle.BackColor = Color.FromArgb(30, 30, 30);
+            _gvwResults.DefaultCellStyle.ForeColor = Color.White;
+            _gvwResults.DefaultCellStyle.SelectionBackColor = Color.FromArgb(51, 153, 255);
+            _gvwResults.DefaultCellStyle.SelectionForeColor = Color.Black;
+            _gvwResults.ColumnHeadersDefaultCellStyle.BackColor = Color.FromArgb(45, 45, 45);
+            _gvwResults.ColumnHeadersDefaultCellStyle.ForeColor = Color.White;
+            _gvwResults.EnableHeadersVisualStyles = false;
+            _gvwResults.AlternatingRowsDefaultCellStyle.BackColor = Color.FromArgb(45, 45, 45);
+            _gvwResults.AlternatingRowsDefaultCellStyle.ForeColor = Color.White;
+        }
+
         foreach (DataGridViewColumn column in _gvwResults.Columns)
         {
             column.SortMode = DataGridViewColumnSortMode.NotSortable;
@@ -266,6 +286,22 @@ private void InitializeTagsDataGridView()
         _gvwTags.AutoGenerateColumns = true;
         _gvwTags.CellFormatting += DataGridView_Results_CellFormatting;
         _gvwTags.KeyDown += DataGridView_Tags_KeyDown;
+
+        if (Application.IsDarkModeEnabled)
+        {
+            _gvwTags.BackgroundColor = Color.FromArgb(30, 30, 30);
+            _gvwTags.ForeColor = Color.White;
+            _gvwTags.GridColor = Color.FromArgb(45, 45, 45);
+            _gvwTags.DefaultCellStyle.BackColor = Color.FromArgb(30, 30, 30);
+            _gvwTags.DefaultCellStyle.ForeColor = Color.White;
+            _gvwTags.DefaultCellStyle.SelectionBackColor = Color.FromArgb(51, 153, 255);
+            _gvwTags.DefaultCellStyle.SelectionForeColor = Color.Black;
+            _gvwTags.ColumnHeadersDefaultCellStyle.BackColor = Color.FromArgb(45, 45, 45);
+            _gvwTags.ColumnHeadersDefaultCellStyle.ForeColor = Color.White;
+            _gvwTags.EnableHeadersVisualStyles = false;
+            _gvwTags.AlternatingRowsDefaultCellStyle.BackColor = Color.FromArgb(45, 45, 45);
+            _gvwTags.AlternatingRowsDefaultCellStyle.ForeColor = Color.White;
+        }
     }
 
     private void InitializeDebounceTimers()
@@ -287,6 +323,23 @@ private void InitializeResizeTimer()
         _resizeTimer.Start();
     }
 
+    private void SetLinkLabelColors(Control parent, Color linkColor, Color activeLinkColor)
+    {
+        foreach (Control ctrl in parent.Controls)
+        {
+            if (ctrl is LinkLabel linkLabel)
+            {
+                linkLabel.LinkColor = linkColor;
+                linkLabel.ActiveLinkColor = activeLinkColor;
+            }
+
+            if (ctrl.HasChildren)
+            {
+                SetLinkLabelColors(ctrl, linkColor, activeLinkColor);
+            }
+        }
+    }
+
     private async void Form_Load(object sender, EventArgs e)
     {
         RestoreLastWindowState();

AzTagger/Program.cs

@@ -1,7 +1,6 @@
 // Copyright (c) Thomas Gossler, 2024. All rights reserved.
 // Licensed under the MIT license.
 
-using AzTagger.Models;
 using AzTagger.Services;
 using Serilog;
 using System;
@@ -34,6 +33,7 @@ static void Main()
             }
 
             Application.SetHighDpiMode(HighDpiMode.SystemAware);
+            Application.SetColorMode(SystemColorMode.System);
             Application.EnableVisualStyles();
             Application.SetCompatibleTextRenderingDefault(false);
             Application.Run(new MainForm(settings));