[Data Field] Ultra-Trail Dashboard - Smoothed Grade & GAP with FIT logging

Hi everyone,

I would like to share my new custom data field built specifically for mountain and ultra runners: Ultra-Trail Dashboard.

As a trail runner, I was frustrated by how jumpy and erratic Garmin's native instant grade can be on technical terrain. To solve this, I built a tailored 4-quadrant dashboard focused on stability and pacing.

Key Features:
- Smoothed Grade (%): Uses a configurable moving-average window to deliver a highly stable slope percentage, avoiding sudden spikes;
- GAP (Grade Adjusted Pace): Calculates your flat-equivalent pace using the scientific Minetti model to manage your effort during steep climbs/descents;
- Native FIT File Logging: The GAP metric is written directly into the activity file, so you can analyze your GAP chart on Garmin Connect and Strava post-run;
- Visual Slope Alerts: Text colors dynamically shift when climbing above 12% and 20% for quick effort assessment;
- Battery-Efficient & Private: Fully adaptive layout for MIP/AMOLED screens (respecting system themes) and 100% offline.

Supported Devices:
Optimized for fenix 8, fenix 7/6 series, epix Gen 2 / Pro, Enduro 1/2/3, tactix 7/8, and high-end Forerunner models (965, 955, 945, 265, 255).

Store Link: https://apps.garmin.com/apps/76cbcc4a-623e-40da-87c7-762187c3247c

Thanks for your feedback, feature requests, or any data consistency reports from your recent trail sessions.