try rfc wording

matkoniecz · web-flow · commit e359b8824b45 · 2026-03-11T12:13:00.000+01:00
diff --git a/ICONS.md b/ICONS.md
@@ -35,4 +35,4 @@ For presets, it is possible to define an icon via the `imageURL` property in add
 
 `imageURL` is extensively used to specify the logos of brand presets by the [name-suggestion-index](https://github.com/osmlab/name-suggestion-index) project.
 
-It is not be used for regular preset entries in [iD tagging schema](https://github.com/openstreetmap/id-tagging-schema).
+It must not be used for regular preset entries in [iD tagging schema](https://github.com/openstreetmap/id-tagging-schema).

Original file line number	Diff line number	Diff line change
@@ -35,4 +35,4 @@ For presets, it is possible to define an icon via the `imageURL` property in add
`35`	`35`
`36`	`36`	`imageURL` is extensively used to specify the logos of brand presets by the [name-suggestion-index](https://github.com/osmlab/name-suggestion-index) project.
`37`	`37`
`38`		`-It is not be used for regular preset entries in [iD tagging schema](https://github.com/openstreetmap/id-tagging-schema).`
	`38`	`+It must not be used for regular preset entries in [iD tagging schema](https://github.com/openstreetmap/id-tagging-schema).`