diff --git a/deb/usr/share/icons/hicolor/64x64/apps/imajviewer.png b/deb/usr/share/icons/hicolor/64x64/apps/imajviewer.png
index ede4fdf..2da3e46 100644
Binary files a/deb/usr/share/icons/hicolor/64x64/apps/imajviewer.png and b/deb/usr/share/icons/hicolor/64x64/apps/imajviewer.png differ
diff --git a/install.sh b/install.sh
index dd36886..09bec68 100755
--- a/install.sh
+++ b/install.sh
@@ -42,31 +42,19 @@ ok "Symlink: $BIN_LINK → $INSTALL_DIR/${APP}"
 
 # ── İkon (64×64 PNG) ──
 if [ ! -f "$ICON_FILE" ]; then
-  info "İkon oluşturuluyor…"
-  python3 -c "
-import struct, zlib, sys
-w=h=64; r=g=b=0xff
-raw=b''
-for y in range(h):
-    raw+=b'\\x00'
-    for x in range(w):
-        d=abs(x-32)+abs(y-32)
-        if d<24: r,g,b=100,140,255
-        elif d<30: r,g,b=200,220,255
-        else: r,g,b=40,45,50
-        raw+=bytes([r,g,b,255])
-def c(t,d):
-    c=t+d
-    return struct.pack('>I',len(d))+c+struct.pack('>I',zlib.crc32(c)&0xffffffff)
-with open('$ICON_FILE','wb') as f:
-    f.write(b'\\x89PNG\\r\\n\\x1a\\n')
-    f.write(c(b'IHDR',struct.pack('>IIBBBBB',w,h,8,6,0,0,0)))
-    f.write(c(b'IDAT',zlib.compress(raw)))
-    f.write(c(b'IEND',b''))
-print('  İkon: $ICON_FILE')
-"
+  if [ -f "$SCRIPT_DIR/imajviewericon.png" ]; then
+    info "İkon kopyalanıyor (64x64)…"
+    python3 -c "
+from PIL import Image
+im = Image.open('$SCRIPT_DIR/imajviewericon.png')
+im.resize((64,64), Image.LANCZOS).save('$ICON_FILE')
+" && ok "İkon: $ICON_FILE" || err "İkon dönüştürme başarısız!"
+  else
+    err "imajviewericon.png bulunamadı!"
+  fi
+else
+  ok "İkon zaten mevcut"
 fi
-ok "İkon hazır"
 
 # ── .desktop dosyası ──
 info ".desktop dosyası oluşturuluyor…"
diff --git a/windows/installer.iss b/windows/installer.iss
index fade069..355ef75 100644
--- a/windows/installer.iss
+++ b/windows/installer.iss
@@ -23,6 +23,7 @@ SolidCompression=yes
 WizardStyle=modern
 PrivilegesRequired=admin
 ArchitecturesInstallIn64BitMode=x64compatible
+SetupIconFile=..\windows\runner\resources\app_icon.ico
 
 [Languages]
 Name: "turkish"; MessagesFile: "compiler:Languages\Turkish.isl"
diff --git a/windows/runner/resources/app_icon.ico b/windows/runner/resources/app_icon.ico
index c04e20c..48be4f4 100644
Binary files a/windows/runner/resources/app_icon.ico and b/windows/runner/resources/app_icon.ico differ