Goal: Implement a native text formatting tag for overlining (e.g., <OVL>) to match the existing underline (<UND>) functionality.
The Problem: In professional cartography (specifically Aviation Charting), we must denote "Between" constraints with a line both above and below the text. Currently, there is no automated way to create a continuous overline.
Why Workarounds Fail:
Character Stacking: Using underscores or overscore characters results in visible gaps between glyphs, especially in PDF exports.
Manual Drawing: Our workflow is automated and dynamic; manual annotation or graphic lines are not feasible.
Request: A native <OVL> tag that produces a solid, continuous line above text, fully compatible with Arcade and dynamic labeling.
