diff --git a/src/types.ts b/src/types.ts
index e600963..22f3db9 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -8,6 +8,7 @@ type ScatterDataParams = {
   colorFormatter?: ColorFormatter
 }
 type ScatterOptionsParams = {
+  // TODO: this options is not used anywhere, let's remove it
   voronoiRadius: number;
 }
 export type ScatterData = Serie & Partial<ScatterDataParams>;