first commit

src/modules/home/properties/bylayer.rs

@@ -0,0 +1,12 @@
+// ByLayer tool — ribbon definition.
+
+use crate::modules::{IconKind, ModuleEvent, ToolDef};
+
+pub fn tool() -> ToolDef {
+    ToolDef {
+        id: "BYLAYER",
+        label: "ByLayer",
+        icon: IconKind::Glyph("⊟"),
+        event: ModuleEvent::Command("BYLAYER".to_string()),
+    }
+}