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diff --git a/lib/flags.py b/lib/flags.py
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+++ b/lib/flags.py
@@ -0,0 +1,119 @@
+import os
+from pathlib import Path
+from PIL import Image, ImageDraw
+
+# Ermittle Icon-Verzeichnis aus Umgebungsvariable oder relativ zum Projekt
+PROJECT_DOC = os.environ.get('PROJECT_DOC')
+if PROJECT_DOC:
+    ICON_DIR = Path(PROJECT_DOC) / "img" / "Icons"
+else:
+    # Fallback: relativ zum lib-Verzeichnis
+    ICON_DIR = Path(__file__).parent.parent / "doc" / "img" / "Icons"
+
+# Load base icon
+base = Image.open(ICON_DIR / "dxfCs.png").convert("RGBA")
+
+def add_flag(flag_draw_fn, name):
+    img = base.copy()
+    draw = ImageDraw.Draw(img)
+    # flag area (top-left)
+    x0, y0, x1, y1 = 243, 170, 512, 360
+
+    flag_draw_fn(draw, x0, y0, x1, y1)
+    path = ICON_DIR / f"{name}.png"
+    img.save(path)
+    print(f"Flagge erstellt: {path}")
+    return str(path)
+
+# Define flags
+def flag_en(draw, x0, y0, x1, y1):
+    """Union Jack (UK-Flagge)"""
+    # Blauer Hintergrund
+    draw.rectangle([x0, y0, x1, y1], fill="#012169")
+
+    cx = (x0 + x1) / 2
+    cy = (y0 + y1) / 2
+    w = x1 - x0
+    h = y1 - y0
+
+    # Weiße Diagonalen (Schottland)
+    white_diag_width = 40
+    # Diagonale von links-oben nach rechts-unten
+    draw.polygon([
+        x0, y0,
+        x0 + white_diag_width, y0,
+        x1, y1 - white_diag_width,
+        x1, y1,
+        x1 - white_diag_width, y1,
+        x0, y0 + white_diag_width
+    ], fill="white")
+    # Diagonale von rechts-oben nach links-unten
+    draw.polygon([
+        x1, y0,
+        x1 - white_diag_width, y0,
+        x0, y1 - white_diag_width,
+        x0, y1,
+        x0 + white_diag_width, y1,
+        x1, y0 + white_diag_width
+    ], fill="white")
+
+    # Rote Diagonalen (Irland)
+    red_diag_width = 20
+    # Diagonale von links-oben nach rechts-unten
+    draw.polygon([
+        x0, y0,
+        x0 + red_diag_width, y0,
+        x1, y1 - red_diag_width,
+        x1, y1,
+        x1 - red_diag_width, y1,
+        x0, y0 + red_diag_width
+    ], fill="#C8102E")
+    # Diagonale von rechts-oben nach links-unten
+    draw.polygon([
+        x1, y0,
+        x1 - red_diag_width, y0,
+        x0, y1 - red_diag_width,
+        x0, y1,
+        x0 + red_diag_width, y1,
+        x1, y0 + red_diag_width
+    ], fill="#C8102E")
+
+    # Weißes Kreuz (England - breiter)
+    white_cross_width = 40
+    draw.rectangle([cx - white_cross_width/2, y0, cx + white_cross_width/2, y1], fill="white")
+    draw.rectangle([x0, cy - white_cross_width/2, x1, cy + white_cross_width/2], fill="white")
+
+    # Rotes Kreuz (England - schmaler)
+    red_cross_width = 24
+    draw.rectangle([cx - red_cross_width/2, y0, cx + red_cross_width/2, y1], fill="#C8102E")
+    draw.rectangle([x0, cy - red_cross_width/2, x1, cy + red_cross_width/2], fill="#C8102E")
+
+def flag_fr(draw, x0, y0, x1, y1):
+    w = (x1-x0)//3
+    draw.rectangle([x0, y0, x0+w, y1], fill="#CE1126")
+    draw.rectangle([x0+w, y0, x0+2*w, y1], fill="#ffe")
+    draw.rectangle([x0+2*w, y0, x1, y1], fill="#002654")
+
+def flag_it(draw, x0, y0, x1, y1):
+    w = (x1-x0)//3
+    draw.rectangle([x0, y0, x0+w, y1], fill="#009246")
+    draw.rectangle([x0+w, y0, x0+2*w, y1], fill="#ffe")
+    draw.rectangle([x0+2*w, y0, x1, y1], fill="#ce2b37")
+
+def flag_es(draw, x0, y0, x1, y1):
+    h = (y1-y0)
+    draw.rectangle([x0, y0, x1, y0+h*0.25], fill="#ad1519")
+    draw.rectangle([x0, y0+h*0.25, x1, y0+h*0.75], fill="#fabd00")
+    draw.rectangle([x0, y0+h*0.75, x1, y1], fill="#ad1519")
+
+if __name__ == "__main__":
+    # Generiere alle Flaggen-Icons
+    print(f"\nGeneriere Flaggen-Icons in {ICON_DIR}\n")
+
+    icons = []
+    icons.append(add_flag(flag_en, "dxfEN"))
+    icons.append(add_flag(flag_fr, "dxfFR"))
+    icons.append(add_flag(flag_it, "dxfIT"))
+    icons.append(add_flag(flag_es, "dxfES"))
+
+    print(f"\nFertig! {len(icons)} Icons wurden erstellt.")