diff --git a/front/src/components/Gallery/index.tsx b/front/src/components/Gallery/index.tsx
index 402ce45..ed133df 100644
--- a/front/src/components/Gallery/index.tsx
+++ b/front/src/components/Gallery/index.tsx
@@ -3,7 +3,7 @@ import React, { useEffect, useMemo, useState } from 'react'
 import './index.scss'
 
 import Title from 'components/Title'
-import Waterfall, { WaterfallLayoutConfigure } from 'components/Waterfall'
+import Waterfall, { WaterfallLayoutConfigure, Props as WaterfallLayoutProps } from 'components/Waterfall'
 import { Gallery, Photo } from 'api/photo'
 import { CoverClickEvent, Props as PhotoBoxProps } from 'components/PhotoBox'
 import Submission from 'components/Submission'
@@ -135,13 +135,13 @@ export type Props = {
   cannot_select_vote?: boolean
   show_vote_button: boolean
   gallery: Gallery
-  selectedIdList: number[]
+  selected_id_list: WaterfallLayoutProps['selected_id_list']
   onClickVote?: (photo_id: Photo['id']) => void
   onClickCover: (clickInfo: CoverClickEvent, photo_id: Photo['id']) => void
 }
 export default ({
   cannot_select_vote = false,
-  show_vote_button, gallery, selectedIdList, onClickVote, onClickCover,
+  show_vote_button, gallery, selected_id_list, onClickVote, onClickCover,
 }: Props) => {
   const layout = useWaterfallLayout(gallery)
 
@@ -152,14 +152,14 @@ export default ({
       layout_configure={layout}
       cannot_select_vote={cannot_select_vote}
       photos={gallery.photos}
-      selectedIdList={selectedIdList}
+      selected_id_list={selected_id_list}
       show_vote_button={show_vote_button}
       onClickCover={onClickCover}
       onClickVote={(photoId) => {
         onClickVote && onClickVote(photoId)
       }}
     />
-  ), [cannot_select_vote, gallery.photos, show_vote_button, layout, onClickCover, onClickVote, selectedIdList])
+  ), [cannot_select_vote, gallery.photos, show_vote_button, layout, onClickCover, onClickVote, selected_id_list])
 
   return (
     <div className="gallery">
diff --git a/front/src/components/PhotoBox/index.tsx b/front/src/components/PhotoBox/index.tsx
index 8604815..c068ba3 100644
--- a/front/src/components/PhotoBox/index.tsx
+++ b/front/src/components/PhotoBox/index.tsx
@@ -87,7 +87,6 @@ export const PhotoBoxDimension = forwardRef< DimensionUnknown, Props>((props, re
 
 const PhotoBox = forwardRef<HTMLDivElement, Props>((props, ref) => {
   const { type, vertial_gutter, box_width, photo, hideMember, avatar, desc, style, vote_button_status } = props
-  const vote_button_is_highlight = vote_button_status === 'selected'
 
   const [thumb_loaded, thumb] = useQueueload(photo.thumb)
   const [avatar_loaded, avatarThumb] = useQueueload(avatar?.thumb)
diff --git a/front/src/components/Waterfall/index.tsx b/front/src/components/Waterfall/index.tsx
index a6b5088..6578605 100644
--- a/front/src/components/Waterfall/index.tsx
+++ b/front/src/components/Waterfall/index.tsx
@@ -44,7 +44,7 @@ export type Props = {
   onClickVote(photo_id: Photo['id']): void
   onClickCover: WaterfallLayoutClickCoverHandler
 
-  selectedIdList: number[]
+  selected_id_list: number[]
 }
 
 function calcTotalBoxWidth({
@@ -62,7 +62,7 @@ export default (props: Props) => {
     show_vote_button,
     layout_configure,
     photos,
-    selectedIdList
+    selected_id_list
   } = props
   const { box_type, vertial_gutter, gallery_width } = layout_configure
   const [ box_width ] = calcTotalBoxWidth(layout_configure)
@@ -118,7 +118,7 @@ export default (props: Props) => {
                   show_vote_button: show_vote_button,
                   hideMember: !photo.member,
                   vote_button_status: (
-                    (selectedIdList && (selectedIdList.indexOf(photo.id) !== -1)) ?
+                    (selected_id_list && (selected_id_list.indexOf(photo.id) !== -1)) ?
                     'selected' :
                     (props.cannot_select_vote ? 'cannot-select' : 'un-selected')
                   ),
diff --git a/front/src/utils/queue-load.ts b/front/src/utils/queue-load.ts
index 0e83973..14a9e28 100644
--- a/front/src/utils/queue-load.ts
+++ b/front/src/utils/queue-load.ts
@@ -5,6 +5,8 @@ import { findListByProperty, removeListItemByIdx } from './common'
 import download from './download'
 import useSafeState from 'hooks/useSafeState'
 
+export const __MAX_PARALLEL_NUMBER__ = 3
+
 type Load = {
   blob: Blob;
   blobUrl: string;
@@ -73,8 +75,6 @@ export function useQueueload(loadsrc: string | undefined, need_base64_url: boole
   return [loaded, back_src] as const
 }
 
-export const MAX_PARALLEL_NUMBER = 3
-
 type Src = string
 type LoadTask = {
   src: Src
@@ -107,7 +107,7 @@ export function QueueLoad() {
       return
     } else if (
       isLoading() &&
-      ( getConcurrentTasks().length >= MAX_PARALLEL_NUMBER )
+      ( getConcurrentTasks().length >= __MAX_PARALLEL_NUMBER__ )
     ) {
       return
     } else {