Add ethnicity list node and regional filters

README.md

@@ -18,6 +18,7 @@ The node is registered as:
 - `prompt_builder / SxCP Category Preset`
 - `prompt_builder / SxCP Cast Control`
 - `prompt_builder / SxCP Generation Profile`
+- `prompt_builder / SxCP Ethnicity List`
 - `prompt_builder / SxCP Advanced Filters`
 - `prompt_builder / SxCP Prompt Builder From Configs`
 - `prompt_builder / SxCP Woman Slot`
@@ -51,6 +52,12 @@ node. For cleaner workflows, use the split nodes:
 - `SxCP Generation Profile` outputs `generation_profile` for common behavior
   presets such as casual-clean, evocative-softcore, hardcore-intense,
   Krea2-friendly, or Flux-original.
+- `SxCP Ethnicity List` outputs a reusable ethnicity filter from checkboxes.
+  It includes broad groups and narrower European/Mediterranean groups such as
+  `french_european`, `germanic_european`, `nordic_european`,
+  `slavic_european`, `italian_mediterranean`, and `iberian_mediterranean`.
+  Connect `ethnicity` to a prompt or slot `ethnicity_list` input, or connect
+  `filter_config` to generator-level `filter_config`.
 - `SxCP Advanced Filters` outputs `filter_config` for appearance include
   checkboxes, figure, and plus-size inclusion.
 - `SxCP Prompt Builder From Configs` consumes those config outputs and produces
@@ -125,6 +132,11 @@ as one stable character across scene, pose, outfit, or row rerolls. This seed is
 shared by that slot's random age/body/appearance choices, so you can keep the
 same participant while changing other generation axes.
 
+Connect `SxCP Ethnicity List.ethnicity` to a slot's `ethnicity_list` input when
+that character should randomize inside a selected heritage list. This is useful
+for narrowing broad groups, for example choosing French/Germanic/Nordic/Slavic
+European entries instead of the entire `european` pool.
+
 Use `Woman Slot` for women because it exposes woman-focused body choices and a
 `figure_bias` selector. Use `Man Slot` for men because it exposes man-focused
 body choices and omits figure bias. The older generic `SxCP Character Slot`