Example 07 is a bounded runtime/UI-binding pilot for a String widget roundtrip across the current C++, Python, and Rust reference runtimes.
It publishes a simple hello world flow:
string control value -> public input -> LLVM-produced string kernel -> public output -> string indicator value
The visible front panel must consume ui/string_panel.wfrog and the Default String realization asset.
It must not publish a local duplicated SVG or pass validation through a handcrafted HTML/CSS fallback.
The String caption placement, hover colors, frame colors, and text-region styling are instance properties in the .wfrog package.
The Default String realization intentionally does not publish a focus_ring part for this example surface.