diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 7589fe5..4a3dad3 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,3 +1,5 @@
 <resources>
     <string name="app_name">Canves</string>
+    <string name="clear">Clear</string>
+    <string name="ref_line">Ref Line</string>
 </resources>
\ No newline at end of file