diff --git a/Models/ThemeConfig/Conversion/CreateNoteImportLayer.ts b/Models/ThemeConfig/Conversion/CreateNoteImportLayer.ts
index d4d84ded6c..dfdefe21f8 100644
--- a/Models/ThemeConfig/Conversion/CreateNoteImportLayer.ts
+++ b/Models/ThemeConfig/Conversion/CreateNoteImportLayer.ts
@@ -198,7 +198,8 @@ export default class CreateNoteImportLayer extends Conversion<LayerConfigJson, L
                             },
                         ],
                     },
-                    iconSize: "40,40,center",
+                    iconSize: "40,40",
+                    anchor: "center",
                 },
             ],
         }
diff --git a/Models/ThemeConfig/Json/PointRenderingConfigJson.ts b/Models/ThemeConfig/Json/PointRenderingConfigJson.ts
index ca168b402d..b0858bd860 100644
--- a/Models/ThemeConfig/Json/PointRenderingConfigJson.ts
+++ b/Models/ThemeConfig/Json/PointRenderingConfigJson.ts
@@ -62,7 +62,7 @@ export default interface PointRenderingConfigJson {
      * For example, a feature attached to the ground can use 'bottom' as zooming in will give the appearance of being anchored to a fixed location.
      *
      */
-    anchor?: "center" | "top" | "bottom" | "left" | "right" | string
+    anchor?: "center" | "top" | "bottom" | "left" | "right" | string | TagRenderingConfigJson
 
     /**
      * The rotation of an icon, useful for e.g. directions.
diff --git a/Models/ThemeConfig/PointRenderingConfig.ts b/Models/ThemeConfig/PointRenderingConfig.ts
index 8977136ad1..06bc02797e 100644
--- a/Models/ThemeConfig/PointRenderingConfig.ts
+++ b/Models/ThemeConfig/PointRenderingConfig.ts
@@ -92,6 +92,16 @@ export default class PointRenderingConfig extends WithContextLoader {
                 throw context + ": builtin SVG asset not found: " + iconPath
             }
         }
+        if (typeof json.iconSize === "string") {
+            const s = json.iconSize
+            if (["bottom", "top", "center"].some((e) => s.endsWith(e))) {
+                throw (
+                    "At " +
+                    context +
+                    " in : iconSize uses legacy ,bottom, center or top postfix. Use the field `anchor` instead."
+                )
+            }
+        }
         this.iconSize = this.tr("iconSize", "40,40")
         this.anchor = this.tr("anchor", "center")
         this.label = this.tr("label", undefined)
@@ -239,7 +249,6 @@ export default class PointRenderingConfig extends WithContextLoader {
 
         const anchor = render(this.anchor, "center")
         const mode = anchor?.trim()?.toLowerCase() ?? "center"
-
         // in MapLibre, the offset is relative to the _center_ of the object, with left = [-x, 0] and up = [0,-y]
         let anchorW = 0
         let anchorH = 0