Left-align logo in README

README.md

@@ -1,5 +1,7 @@
 # ICRS (Interactive Color Range Analyzer)
 
+<img src="app/assets/logo.png" alt="ICRS Logo" width="120"/>
+
 ICRS is a small Tkinter tool for analysing colour ranges in images. You load a picture, pick or click a reference colour, adjust hue/saturation/value sliders, and the app marks matching pixels while showing quick stats.
 
 ## Features

app/gui/ui.py

@@ -328,6 +328,7 @@ class UIBuilderMixin:
     def _create_navigation_button(self, container, symbol: str, command, *, column: int) -> None:
         bg = self.root.cget("bg") if hasattr(self.root, "cget") else "#f2f2f7"
         container.grid_rowconfigure(0, weight=1)
+        fg = "#f5f5f5" if getattr(self, "theme", "light") == "dark" else "#1f1f1f"
         btn = tk.Button(
             container,
             text=symbol,
@@ -338,6 +339,8 @@ class UIBuilderMixin:
             background=bg,
             activebackground=bg,
             highlightthickness=0,
+            fg=fg,
+            activeforeground=fg,
             cursor="hand2",
             width=2,
         )
@@ -349,6 +352,23 @@ class UIBuilderMixin:
         title_bar.pack(fill=tk.X, side=tk.TOP)
         title_bar.pack_propagate(False)
 
+        logo = None
+        try:
+            from PIL import Image, ImageTk  # type: ignore
+
+            logo_path = Path(__file__).resolve().parent / "assets" / "logo.png"
+            if logo_path.exists():
+                image = Image.open(logo_path).convert("RGBA")
+                image.thumbnail((26, 26))
+                logo = ImageTk.PhotoImage(image)
+        except Exception:
+            logo = None
+
+        if logo is not None:
+            logo_label = tk.Label(title_bar, image=logo, bg=bar_bg)
+            logo_label.image = logo  # keep reference
+            logo_label.pack(side=tk.LEFT, padx=(10, 6), pady=4)
+
         title_label = tk.Label(
             title_bar,
             text="ICRS — Interactive Color Range Analyzer",
@@ -357,7 +377,7 @@ class UIBuilderMixin:
             font=("Segoe UI", 11, "bold"),
             anchor="w",
         )
-        title_label.pack(side=tk.LEFT, padx=12)
+        title_label.pack(side=tk.LEFT, padx=6)
 
         close_btn = tk.Button(
             title_bar,