UI metadata
===========

Purpose
-------

``import miskeyed.ui;`` provides attributes that express semantic presentation:
``UIName``, ``UIGroup``, ``UIWidget``, ``UIRange``, ``UIStep``, ``UITooltip``, and
``UIUnits``.

Example
-------

::

   import miskeyed.ui;

   [UIName("Exposure")]
   [UIWidget("slider")]
   [UIRange(-4.0, 4.0)]
   [UIStep(0.1)]
   float exposure = 0.0;

The shader owns intent. Slang reflects it. Workbench maps it to native controls and
packs values using explicit reflected byte offsets.