Surfaces each render delegate's settings (FLAG/INT/FLOAT/STRING) in a
per-viewport floating dialog opened from the gear popup. Settings are grouped
into tabs by key namespace prefix (split at ':'); unprefixed keys go into
General. Changes apply immediately; Reset Defaults restores defValues.
Settings list is cached per delegate to avoid TF_WARN flooding the log on
every frame.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
indigo
205bf65ab3