Improve the message on CompareStudies

optuna_dashboard/ts/components/CompareStudies.tsx

@@ -89,7 +89,7 @@ export const CompareStudies: FC<{
   }, [studies, query])
 
   const studyListWidth = 200
-  const title = "Compare Studies"
+  const title = "Compare Studies (Experimental)"
 
   useEffect(() => {
     action.updateStudySummaries()
@@ -131,7 +131,7 @@ export const CompareStudies: FC<{
             <List>
               <ListSubheader sx={{ display: "flex", flexDirection: "row" }}>
                 <Typography sx={{ p: theme.spacing(1, 0) }}>
-                  {studies.length} Studies
+                  Compare studies with Shift+Click
                 </Typography>
                 <Box sx={{ flexGrow: 1 }} />
               </ListSubheader>