feat: consolidate test structure and enhance header visibility across themes

scripts/verify_headers.py

@@ -0,0 +1,80 @@
+#!/usr/bin/env python3
+"""Verify header visibility across all themes."""
+
+import sys
+import tkinter as tk
+from pathlib import Path
+
+from init import logger
+from theme_manager import ThemeManager
+
+# Add src directory to Python path
+src_path = Path(__file__).parent / "src"
+sys.path.insert(0, str(src_path))
+
+
+def verify_all_themes():
+    """Verify header visibility for all themes."""
+    print("=== HEADER VISIBILITY VERIFICATION ===\n")
+
+    root = tk.Tk()
+    root.withdraw()  # Hide window
+
+    theme_manager = ThemeManager(root, logger)
+    available_themes = theme_manager.get_available_themes()
+
+    print(f"Testing {len(available_themes)} themes...")
+    print("-" * 50)
+
+    for theme in available_themes:
+        print(f"\n🎨 {theme.upper()} THEME")
+
+        # Apply theme
+        success = theme_manager.apply_theme(theme)
+        if not success:
+            print("❌ Failed to apply theme")
+            continue
+
+        # Get colors
+        colors = theme_manager.get_theme_colors()
+        header_colors = theme_manager._get_contrasting_colors(colors)
+
+        # Calculate contrast ratio
+        def get_luminance(color_str):
+            """Calculate relative luminance."""
+            if not color_str or not color_str.startswith("#"):
+                return 0.5
+            try:
+                rgb = tuple(int(color_str[i : i + 2], 16) for i in (1, 3, 5))
+                return (0.299 * rgb[0] + 0.587 * rgb[1] + 0.114 * rgb[2]) / 255
+            except (ValueError, IndexError):
+                return 0.5
+
+        bg_lum = get_luminance(header_colors["header_bg"])
+        fg_lum = get_luminance(header_colors["header_fg"])
+        lighter = max(bg_lum, fg_lum)
+        darker = min(bg_lum, fg_lum)
+        contrast_ratio = (lighter + 0.05) / (darker + 0.05)
+
+        # Determine status
+        if contrast_ratio >= 4.5:
+            status = "✅ EXCELLENT"
+        elif contrast_ratio >= 3.0:
+            status = "✅ GOOD"
+        elif contrast_ratio >= 2.0:
+            status = "⚠️  FAIR"
+        else:
+            status = "❌ POOR"
+
+        print(f"   Header: {header_colors['header_bg']} / {header_colors['header_fg']}")
+        print(f"   Contrast: {contrast_ratio:.2f}:1 {status}")
+
+    print("\n" + "=" * 50)
+    print("✅ Header visibility verification complete!")
+    print("All themes should now have readable table headers.")
+
+    root.destroy()
+
+
+if __name__ == "__main__":
+    verify_all_themes()