diff --git a/README.md b/README.md
index 86605f2..d114e61 100644
--- a/README.md
+++ b/README.md
@@ -10,15 +10,15 @@
 - **High-Performance Image Processing:** Native, vectorized NumPy operations for lightning-fast HSV conversion and color matching.
 - **Automatic Background Exclusion:** Intelligently ignores background pixels (configurable in `config.toml`) to ensure they don't interfere with your analysis.
 - **Grouping Score (Clustering):** A high-performance 9x9 box-sum algorithm that rewards solid "splashes" of color and penalizes thin lines or fragmented noise.
-- **Batch Processing & Customizable Export:** Load a folder of images and instantly export `icra_stats.csv` and `icra_settings.json`. Features a dedicated **Weighting Dialog** to customize the impact of each core component.
-- **Import/Export Settings:** Save your HSV ranges, exclusion zones, and weighting preferences to a JSON file and reload them later for consistent analysis across different sessions.
+- **Batch Processing & Customizable Export:** Load a folder of images and instantly export `icra_stats.csv` and `icra_settings.json`. Features a dedicated **Weighting Dialog** to customize the impact of each core component, outputting precise percentage-based column headers.
+- **Import/Export Settings:** Save your HSV ranges, exclusion zones, weighting preferences, and custom overlay colors to a JSON file and reload them later for consistent analysis across different sessions.
 - **Eyedropper Tool:** Quickly pick target matching colors directly from the image canvas.
 - **Advanced Selection:** Support for exclusion zones (rectangles and free-draw polygons) overlaid on the image, all dynamically rendered via `QGraphicsView`.
 - **Modern UI & UX:** 
   - Drag-and-drop support for files and folders.
-  - Custom dark and light themes with native-feeling borderless titlebars and a categorized menu bar.
+  - Custom dark and light themes with native-feeling borderless titlebars.
+  - Context-aware hover tooltips across the cleanly categorized menu bar.
   - Window size and position persistence between launches.
-  - Keyboard shortcuts for rapid workflow.
 - **Configurable:** Uses `config.toml` to drive everything from overlay matching colors to default sliders and application language (`en`/`de`).
 
 ## Core Concepts
@@ -43,6 +43,9 @@ To ensure accurate statistics, ICRA automatically filters out the image backgrou
 ### 4. Exclusion Zones
 Use the **Exclusion Tool** to draw rectangles or polygons over areas you want to ignore. This is essential for focusing your analysis on specific parts of a complex image while ignoring background noise or irrelevant details.
 
+### 5. Configuration (`config.toml`)
+The application is highly customizable via `config.toml`. A `config.toml.example` file is included in the repository—simply copy it to `config.toml` to gain fine control over default application sliders, language selection, UI masking colors, and initial background exclusion tolerances.
+
 ## Typical Workflow
 
 1.  **Load Data:** Drag and drop a folder or use the `File` menu to load your images.
diff --git a/config.toml.example b/config.toml.example
new file mode 100644
index 0000000..5f386dd
--- /dev/null
+++ b/config.toml.example
@@ -0,0 +1,34 @@
+# Optional global settings
+# language must correspond to a file name in app/lang (e.g. "en", "de").
+language = "en"
+
+[options]
+# Set to true to clear exclusion shapes whenever the image changes in the preview viewer.
+reset_exclusions_on_image_change = false
+
+# Hex color code for the match overlay (e.g. "#ff0000" for Red, "#00ff00" for Green)
+# This is the color that paints over pixels that successfully match your HSV ranges.
+overlay_color = "#ff0000"
+
+# Hex color code for the background to be excluded (default #1f2937)
+# This is useful for automatically removing flat background colors from UI screenshots
+# or web scrapings before the analysis runs.
+exclude_bg_color = "#1f2937"
+
+# Tolerance for background color matching (0-255, default 5)
+# A higher value will exclude pixels that are "close" to the hex color above, allowing
+# you to bypass slight compression artifacts or noise in the image background.
+exclude_bg_tolerance = 5
+
+[defaults]
+# Override any of the following keys to tweak the initial slider values whenever
+# the application starts.
+# hue_min, hue_max, sat_min, val_min, val_max accept floating point numbers.
+# alpha accepts an integer between 0 and 255.
+hue_min = 250.0
+hue_max = 310.0
+sat_min = 15.0
+sat_max = 100.0
+val_min = 15.0
+val_max = 100.0
+alpha = 150