# False Color
False Color maps brightness or saturation values to a colour overlay, making it easy to judge exposure at a glance. Every colour band and its threshold can be fully customised.
Each preset defines up to 15 colour stops with configurable transition sharpness — **Smooth** (continuous gradient), **Sharp** (hard colour cuts), or **Gradient** (mixed).
## Preset Manager
The Preset Manager lets you browse, import, and organise false colour presets. It lists both **built-in presets** and **user presets** stored in the application support folder. You can load presets from `.tfc4` / `.fc4` files on disk, save custom presets, rename, or delete user presets.
False Color Preset Manager
User presets are stored in `~/Library/Application Support/NobeOmniScope/presets/` on macOS.
## Scale
A colour ruler displays the active preset's mapping alongside the image. The scale type determines the unit labels:
| Scale | Description |
| ---------------- | ------------------------ |
| **IRE** | Standard broadcast units |
| **8-bit** | 0–255 levels |
| **10-bit** | 0–1023 levels |
| **mV** | Millivolts (analogue) |
| **ST 2084 (PQ)** | HDR nit levels |
| **HLG** | HLG nit levels |
### Side Scale
Move the scale outside the picture area so it doesn't cover the image. Toggle **Scale on side** in the scope settings.
Side scale keeps the image unobstructed
## Opacity & Blur
* **Opacity** (0–100 %) — blend the false colour overlay with the original image for a semi-transparent view.
* **Blur** — soften the false colour output to reduce noise in the mapping.
## Custom Range
Enable **Custom Range** to override the full preset with a simple two-colour gradient between a minimum and maximum level. Set the min/max percentages and pick the start and end colours.
## Ranges
{% hint style="info" %}
Available from version **1.11.33**.
{% endhint %}
The **Ranges** tab in False Color settings provides numerical editing for every range point in the active preset. Each range boundary is displayed as a slider with its current IRE value. **Cmd-click** (macOS) or **Ctrl-click** (Windows) a slider to turn it into an edit box and type an exact value.
Ranges tab — fine-tune each preset range with precise IRE values
The **Minimum** and **Maximum** range points are locked to 0 and 100 IRE respectively. All other range boundaries can be adjusted freely within their allowed range (constrained by neighbouring points).
This is the same set of range points you can drag directly on the false colour scale — the Ranges tab simply gives you precise numerical control.
## Color Picker
Hold **Alt** and click on the image to sample a colour and create a **colour pin**. Pins display the sampled value in your chosen format:
| Format | Example |
| ------------- | ---------------- |
| **RGB 8-bit** | R:255 G:128 B:64 |
| **HEX** | #FF8040 |
| **RGB Float** | 1.0, 0.5, 0.25 |
## Zoom & Pan
Scroll to zoom in (up to 15×) and drag to pan across the image. A **zoom preview** thumbnail appears in the corner showing the full frame with a yellow rectangle indicating the current viewport. The preview can be toggled off in settings.
## LUT Export
Export the current false colour mapping as a standard **3D LUT** (`.cube`) or **VLT** format for use in external applications or on-set monitors.
## Keyboard Shortcuts
Assign shortcuts via the [Action Editor](https://docs.timeinpixels.com/nobe-omniscope/action-editor) to any of the actions below.
## StreamDeck Actions
| Action | Description |
| --------------- | ------------------------------------- |
| **Toggle Solo** | Fullscreen the False Color scope |
| **Pause** | Freeze the scope at the current frame |
