diff --git a/packages/backend/src/misc/is-quote.ts b/packages/backend/src/misc/is-quote.ts
deleted file mode 100644
index 779f548b0..000000000
--- a/packages/backend/src/misc/is-quote.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-import { Note } from '@/models/entities/note.js';
-
-export default function(note: Note): boolean {
-	return note.renoteId != null && (note.text != null || note.hasPoll || (note.fileIds != null && note.fileIds.length > 0));
-}
diff --git a/packages/backend/src/misc/renote.ts b/packages/backend/src/misc/renote.ts
new file mode 100644
index 000000000..e4b8c06e1
--- /dev/null
+++ b/packages/backend/src/misc/renote.ts
@@ -0,0 +1,5 @@
+import { Note } from '@/models/entities/note.js';
+
+export function isPureRenote(note: Note): boolean {
+	return note.renoteId != null && note.text == null && (renote.fileIds == null || renote.fileIds.length === 0) && !note.hasPoll;
+}
diff --git a/packages/backend/src/server/activitypub/outbox.ts b/packages/backend/src/server/activitypub/outbox.ts
index fb631d3c7..a0f641855 100644
--- a/packages/backend/src/server/activitypub/outbox.ts
+++ b/packages/backend/src/server/activitypub/outbox.ts
@@ -15,6 +15,7 @@ import { makePaginationQuery } from '../api/common/make-pagination-query.js';
 import { setResponseType } from '../activitypub.js';
 import checkFetch from '@/remote/activitypub/check-fetch.js';
 import { fetchMeta } from '@/misc/fetch-meta.js';
+import { isPureRenote } from '@/misc/renote.js';
 
 export default async (ctx: Router.RouterContext) => {
 	const verify = await checkFetch(ctx.req);
@@ -113,10 +114,10 @@ export default async (ctx: Router.RouterContext) => {
  * @param note Note
  */
 export async function packActivity(note: Note): Promise<any> {
-	if (note.renoteId && note.text == null && !note.hasPoll && (note.fileIds == null || note.fileIds.length === 0)) {
+	if (isPureRenote(note)) {
 		const renote = await Notes.findOneByOrFail({ id: note.renoteId });
 		return renderAnnounce(renote.uri ? renote.uri : `${config.url}/notes/${renote.id}`, note);
+	} else {
+		return renderCreate(await renderNote(note, false), note);
 	}
-
-	return renderCreate(await renderNote(note, false), note);
 }
diff --git a/packages/backend/src/server/api/endpoints/notes/create.ts b/packages/backend/src/server/api/endpoints/notes/create.ts
index 2f3d47c12..38d2f9cef 100644
--- a/packages/backend/src/server/api/endpoints/notes/create.ts
+++ b/packages/backend/src/server/api/endpoints/notes/create.ts
@@ -10,6 +10,7 @@ import { noteVisibilities } from '../../../../types.js';
 import { ApiError } from '../../error.js';
 import define from '../../define.js';
 import { getNote } from '../../common/getters.js';
+import { isPureRenote } from '@/misc/renote.js';
 
 export const meta = {
 	tags: ['notes'],
@@ -201,7 +202,7 @@ export default define(meta, paramDef, async (ps, user) => {
 			throw e;
 		});
 
-		if (renote.renoteId && !renote.text && !renote.fileIds && !renote.hasPoll) {
+		if (isPureRenote(renote)) {
 			throw new ApiError(meta.errors.cannotReRenote);
 		}
 
@@ -230,7 +231,7 @@ export default define(meta, paramDef, async (ps, user) => {
 			throw e;
 		});
 
-		if (reply.renoteId && !reply.text && !reply.fileIds && !reply.hasPoll) {
+		if (isPureRenote(reply)) {
 			throw new ApiError(meta.errors.cannotReplyToPureRenote);
 		}
 
diff --git a/packages/backend/src/services/note/delete.ts b/packages/backend/src/services/note/delete.ts
index 496320016..54ba5c6cb 100644
--- a/packages/backend/src/services/note/delete.ts
+++ b/packages/backend/src/services/note/delete.ts
@@ -14,6 +14,7 @@ import { deliverToFollowers, deliverToUser } from '@/remote/activitypub/deliver-
 import { countSameRenotes } from '@/misc/count-same-renotes.js';
 import { registerOrFetchInstanceDoc } from '../register-or-fetch-instance-doc.js';
 import { deliverToRelays } from '../relay.js';
+import { isPureRenote } from '@/misc/renote.js';
 
 /**
  * 投稿を削除します。
@@ -43,7 +44,7 @@ export default async function(user: { id: User['id']; uri: User['uri']; host: Us
 			let renote: Note | null = null;
 
 			// if deletd note is renote
-			if (note.renoteId && note.text == null && !note.hasPoll && (note.fileIds == null || note.fileIds.length === 0)) {
+			if (isPureRenote(note)) {
 				renote = await Notes.findOneBy({
 					id: note.renoteId,
 				});
diff --git a/packages/client/src/components/file-type-icon.vue b/packages/client/src/components/file-type-icon.vue
deleted file mode 100644
index 11d28188c..000000000
--- a/packages/client/src/components/file-type-icon.vue
+++ /dev/null
@@ -1,15 +0,0 @@
-<template>
-<span class="mk-file-type-icon">
-	<template v-if="kind == 'image'"><i class="fas fa-file-image"></i></template>
-</span>
-</template>
-
-<script lang="ts" setup>
-import { computed } from 'vue';
-
-const props = defineProps<{
-	type: string;
-}>();
-
-const kind = computed(() => props.type.split('/')[0]);
-</script>
diff --git a/packages/client/src/components/form/textarea.vue b/packages/client/src/components/form/textarea.vue
index e4bd26706..844d708b9 100644
--- a/packages/client/src/components/form/textarea.vue
+++ b/packages/client/src/components/form/textarea.vue
@@ -12,7 +12,7 @@
 			:readonly="readonly"
 			:placeholder="placeholder"
 			:pattern="pattern"
-			:autocomplete="autocomplete"
+			:autocomplete="autocomplete ? 'on' : 'off'"
 			:spellcheck="spellcheck"
 			@focus="focused = true"
 			@blur="focused = false"
@@ -62,34 +62,40 @@ const props = withDefaults(defineProps<{
 	manualSave: false,
 });
 
-const { modelValue, autofocus } = toRefs(props);
+const { modelValue } = toRefs(props);
 // modelValue is read only, so a separate ref is needed.
 const v = $ref(modelValue.value);
 
-const focused = $ref(false);
-const changed = $ref(false);
-const invalid = $ref(false);
-const filled = computed(() => modelValue.value !== '' && modelValue.value != null);
-const inputEl = $ref(null);
+let focused = $ref(false);
+let changed = $ref(false);
+let invalid = $ref(false);
+let inputEl: HTMLTextAreaElement | null = $ref(null);
 
-const focus = () => inputEl.focus();
-const onInput = evt => {
+const filled = computed(() => modelValue.value !== '' && modelValue.value != null);
+
+const focus = (): void => {
+	inputEl?.focus();
+};
+
+const onInput = (evt: HTMLInputEvent): void => {
 	changed = true;
 	emit('change', evt);
 };
-const onKeydown = (evt: KeyboardEvent) => {
+
+const onKeydown = (evt: KeyboardEvent): void => {
 	emit('keydown', evt);
 	if (evt.code === 'Enter') {
 		emit('enter');
 	}
 };
-const updated = () => {
+
+const updated = (): void => {
 	changed = false;
 	emit('update:modelValue', v);
 };
 const debouncedUpdated = debounce(1000, updated);
 
-watch(modelValue, newValue => {
+watch(modelValue, () => {
 	if (!props.manualSave) {
 		if (props.debounce) {
 			debouncedUpdated();
@@ -98,15 +104,12 @@ watch(modelValue, newValue => {
 		}
 	}
 
-	invalid = inputEl.validity.badInput;
+	invalid = inputEl?.validity.badInput ?? false;
 });
 
-
 onMounted(() => {
 	nextTick(() => {
-		if (props.autofocus) {
-			inputEl.focus();
-		}
+		if (props.autofocus) focus();
 	});
 });
 </script>
diff --git a/packages/client/src/components/image-viewer.vue b/packages/client/src/components/image-viewer.vue
deleted file mode 100644
index 7bc88399e..000000000
--- a/packages/client/src/components/image-viewer.vue
+++ /dev/null
@@ -1,77 +0,0 @@
-<template>
-<MkModal ref="modal" :z-priority="'middle'" @click="modal.close()" @closed="emit('closed')">
-	<div class="xubzgfga">
-		<header>{{ image.name }}</header>
-		<img :src="image.url" :alt="image.comment" :title="image.comment" @click="modal.close()"/>
-		<footer>
-			<span>{{ image.type }}</span>
-			<span>{{ bytes(image.size) }}</span>
-			<span v-if="image.properties && image.properties.width">{{ number(image.properties.width) }}px × {{ number(image.properties.height) }}px</span>
-		</footer>
-	</div>
-</MkModal>
-</template>
-
-<script lang="ts" setup>
-import { } from 'vue';
-import * as misskey from 'misskey-js';
-import bytes from '@/filters/bytes';
-import number from '@/filters/number';
-import MkModal from '@/components/ui/modal.vue';
-
-const props = withDefaults(defineProps<{
-	image: misskey.entities.DriveFile;
-}>(), {
-});
-
-const emit = defineEmits<{
-	(ev: 'closed'): void;
-}>();
-
-const modal = $ref<InstanceType<typeof MkModal>>();
-</script>
-
-<style lang="scss" scoped>
-.xubzgfga {
-	display: flex;
-	flex-direction: column;
-	height: 100%;
-
-	> header,
-	> footer {
-		align-self: center;
-		display: inline-block;
-		padding: 6px 9px;
-		font-size: 90%;
-		background: rgba(0, 0, 0, 0.5);
-		border-radius: 6px;
-		color: #fff;
-	}
-
-	> header {
-		margin-bottom: 8px;
-		opacity: 0.9;
-	}
-
-	> img {
-		display: block;
-		flex: 1;
-		min-height: 0;
-		object-fit: contain;
-		width: 100%;
-		cursor: zoom-out;
-		image-orientation: from-image;
-	}
-
-	> footer {
-		margin-top: 8px;
-		opacity: 0.8;
-
-		> span + span {
-			margin-left: 0.5em;
-			padding-left: 0.5em;
-			border-left: solid 1px rgba(255, 255, 255, 0.5);
-		}
-	}
-}
-</style>
diff --git a/packages/client/src/components/ui/hr.vue b/packages/client/src/components/ui/hr.vue
deleted file mode 100644
index 0cb5b4887..000000000
--- a/packages/client/src/components/ui/hr.vue
+++ /dev/null
@@ -1,17 +0,0 @@
-<template>
-<div class="evrzpitu"></div>
-</template>
-
-<script lang="ts">
-import { defineComponent } from 'vue';
-import * as os from '@/os';
-
-export default defineComponent({});
-</script>
-
-<style lang="scss" scoped>
-.evrzpitu
-	margin 16px 0
-	border-bottom solid var(--lineWidth) var(--faceDivider)
-
-</style>
diff --git a/packages/client/src/components/ui/modal.vue b/packages/client/src/components/ui/modal.vue
index 9f3618367..2305a0279 100644
--- a/packages/client/src/components/ui/modal.vue
+++ b/packages/client/src/components/ui/modal.vue
@@ -31,7 +31,7 @@ type ModalTypes = 'popup' | 'dialog' | 'dialog:top' | 'drawer';
 const props = withDefaults(defineProps<{
 	manualShowing?: boolean | null;
 	anchor?: { x: string; y: string; };
-	src?: HTMLElement | null;
+	src?: HTMLElement;
 	preferType?: ModalTypes | 'auto';
 	zPriority?: 'low' | 'middle' | 'high';
 	noOverlap?: boolean;
diff --git a/packages/client/src/directives/follow-append.ts b/packages/client/src/directives/follow-append.ts
deleted file mode 100644
index b0e99628b..000000000
--- a/packages/client/src/directives/follow-append.ts
+++ /dev/null
@@ -1,35 +0,0 @@
-import { Directive } from 'vue';
-import { getScrollContainer, getScrollPosition } from '@/scripts/scroll';
-
-export default {
-	mounted(src, binding, vn) {
-		if (binding.value === false) return;
-
-		let isBottom = true;
-
-		const container = getScrollContainer(src)!;
-		container.addEventListener('scroll', () => {
-			const pos = getScrollPosition(container);
-			const viewHeight = container.clientHeight;
-			const height = container.scrollHeight;
-			isBottom = (pos + viewHeight > height - 32);
-		}, { passive: true });
-		container.scrollTop = container.scrollHeight;
-
-		const ro = new ResizeObserver((entries, observer) => {
-			if (isBottom) {
-				const height = container.scrollHeight;
-				container.scrollTop = height;
-			}
-		});
-
-		ro.observe(src);
-
-		// TODO: 新たにプロパティを作るのをやめMapを使う
-		src._ro_ = ro;
-	},
-
-	unmounted(src, binding, vn) {
-		if (src._ro_) src._ro_.unobserve(src);
-	}
-} as Directive;
diff --git a/packages/client/src/pages/emojis.category.vue b/packages/client/src/pages/emojis.category.vue
index 6d915c584..9b4c38842 100644
--- a/packages/client/src/pages/emojis.category.vue
+++ b/packages/client/src/pages/emojis.category.vue
@@ -1,98 +1,46 @@
 <template>
 <div class="driuhtrh">
 	<div class="query">
-		<MkInput v-model="q" class="" :placeholder="$ts.search">
+		<MkInput v-model="q" class="" :placeholder="i18n.ts.search">
 			<template #prefix><i class="fas fa-search"></i></template>
 		</MkInput>
-
-		<!-- たくさんあると邪魔
-		<div class="tags">
-			<span class="tag _button" v-for="tag in tags" :class="{ active: selectedTags.has(tag) }" @click="toggleTag(tag)">{{ tag }}</span>
-		</div>
-		-->
 	</div>
 
 	<MkFolder v-if="searchEmojis" class="emojis">
-		<template #header>{{ $ts.searchResult }}</template>
+		<template #header>{{ i18n.ts.searchResult }}</template>
 		<div class="zuvgdzyt">
 			<XEmoji v-for="emoji in searchEmojis" :key="emoji.name" class="emoji" :emoji="emoji"/>
 		</div>
 	</MkFolder>
 	
-	<MkFolder v-for="category in customEmojiCategories" :key="category" class="emojis">
-		<template #header>{{ category || $ts.other }}</template>
+	<MkFolder v-for="category in emojiCategories" :key="category" class="emojis">
+		<template #header>{{ category || i18n.ts.other }}</template>
 		<div class="zuvgdzyt">
-			<XEmoji v-for="emoji in customEmojis.filter(e => e.category === category)" :key="emoji.name" class="emoji" :emoji="emoji"/>
+			<XEmoji v-for="emoji in instance.emojis.filter(e => e.category === category)" :key="emoji.name" class="emoji" :emoji="emoji"/>
 		</div>
 	</MkFolder>
 </div>
 </template>
 
-<script lang="ts">
-import { defineComponent, computed } from 'vue';
-import MkButton from '@/components/ui/button.vue';
+<script lang="ts" setup>
+import { watch } from 'vue';
 import MkInput from '@/components/form/input.vue';
-import MkSelect from '@/components/form/select.vue';
 import MkFolder from '@/components/ui/folder.vue';
-import MkTab from '@/components/tab.vue';
-import * as os from '@/os';
-import { emojiCategories, emojiTags } from '@/instance';
+import { i18n } from '@/i18n';
+import { emojiCategories, instance } from '@/instance';
 import XEmoji from './emojis.emoji.vue';
 
-export default defineComponent({
-	components: {
-		MkButton,
-		MkInput,
-		MkSelect,
-		MkFolder,
-		MkTab,
-		XEmoji,
-	},
+let q: string = $ref('');
+let searchEmojis: null | Record<string, any>[] = $ref(null);
 
-	data() {
-		return {
-			q: '',
-			customEmojiCategories: emojiCategories,
-			customEmojis: this.$instance.emojis,
-			tags: emojiTags,
-			selectedTags: new Set(),
-			searchEmojis: null,
-		};
-	},
-
-	watch: {
-		q() { this.search(); },
-		selectedTags: {
-			handler() {
-				this.search();
-			},
-			deep: true
-		},
-	},
-
-	methods: {
-		search() {
-			if ((this.q === '' || this.q == null) && this.selectedTags.size === 0) {
-				this.searchEmojis = null;
-				return;
-			}
-
-			if (this.selectedTags.size === 0) {
-				this.searchEmojis = this.customEmojis.filter(emoji => emoji.name.includes(this.q) || emoji.aliases.includes(this.q));
-			} else {
-				this.searchEmojis = this.customEmojis.filter(emoji => (emoji.name.includes(this.q) || emoji.aliases.includes(this.q)) && [...this.selectedTags].every(t => emoji.aliases.includes(t)));
-			}
-		},
-
-		toggleTag(tag) {
-			if (this.selectedTags.has(tag)) {
-				this.selectedTags.delete(tag);
-			} else {
-				this.selectedTags.add(tag);
-			}
-		}
+function search() {
+	if (q === '') {
+		searchEmojis = null;
+	} else {
+		searchEmojis = instance.emojis.filter(emoji => emoji.name.includes(this.q) || emoji.aliases.includes(this.q));
 	}
-});
+}
+watch(q, search);
 </script>
 
 <style lang="scss" scoped>
diff --git a/packages/client/src/pages/emojis.vue b/packages/client/src/pages/emojis.vue
index 159299584..fd8ca314f 100644
--- a/packages/client/src/pages/emojis.vue
+++ b/packages/client/src/pages/emojis.vue
@@ -2,7 +2,7 @@
 <MkStickyContainer>
 	<template #header><MkPageHeader :actions="headerActions" :tabs="headerTabs"/></template>
 	<div :class="$style.root">
-		<XCategory v-if="tab === 'category'"/>
+		<XCategory/>
 	</div>
 </MkStickyContainer>
 </template>
@@ -14,8 +14,6 @@ import * as os from '@/os';
 import { i18n } from '@/i18n';
 import { definePageMetadata } from '@/scripts/page-metadata';
 
-const tab = ref('category');
-
 function menu(ev) {
 	os.popupMenu([{
 		icon: 'fas fa-download',
diff --git a/packages/client/src/pages/page-editor/page-editor.container.vue b/packages/client/src/pages/page-editor/page-editor.container.vue
index 6927e5586..7e1b37705 100644
--- a/packages/client/src/pages/page-editor/page-editor.container.vue
+++ b/packages/client/src/pages/page-editor/page-editor.container.vue
@@ -4,7 +4,7 @@
 		<div class="title"><slot name="header"></slot></div>
 		<div class="buttons">
 			<slot name="func"></slot>
-			<button v-if="removable" class="_button" @click="remove()">
+			<button v-if="removable" class="_button" @click="emit('remove')">
 				<i class="fas fa-trash-alt"></i>
 			</button>
 			<button v-if="draggable" class="drag-handle _button">
@@ -16,56 +16,41 @@
 			</button>
 		</div>
 	</header>
-	<p v-show="showBody" v-if="error != null" class="error">{{ $t('_pages.script.typeError', { slot: error.arg + 1, expect: $t(`script.types.${error.expect}`), actual: $t(`script.types.${error.actual}`) }) }}</p>
-	<p v-show="showBody" v-if="warn != null" class="warn">{{ $t('_pages.script.thereIsEmptySlot', { slot: warn.slot + 1 }) }}</p>
+	<p v-show="showBody" v-if="error != null" class="error">{{ i18n.t('_pages.script.typeError', { slot: error.arg + 1, expect: i18n.t(`script.types.${error.expect}`), actual: i18n.t(`script.types.${error.actual}`) }) }}</p>
+	<p v-show="showBody" v-if="warn != null" class="warn">{{ i18n.t('_pages.script.thereIsEmptySlot', { slot: warn.slot + 1 }) }}</p>
 	<div v-show="showBody" class="body">
 		<slot></slot>
 	</div>
 </div>
 </template>
 
-<script lang="ts">
-import { defineComponent } from 'vue';
+<script lang="ts" setup>
+import { } from 'vue';
+import { i18n } from '@/i18n';
 
-export default defineComponent({
-	props: {
-		expanded: {
-			type: Boolean,
-			default: true
-		},
-		removable: {
-			type: Boolean,
-			default: true
-		},
-		draggable: {
-			type: Boolean,
-			default: false
-		},
-		error: {
-			required: false,
-			default: null
-		},
-		warn: {
-			required: false,
-			default: null
-		}
-	},
-	emits: ['toggle', 'remove'],
-	data() {
-		return {
-			showBody: this.expanded,
-		};
-	},
-	methods: {
-		toggleContent(show: boolean) {
-			this.showBody = show;
-			this.$emit('toggle', show);
-		},
-		remove() {
-			this.$emit('remove');
-		}
-	}
+const emit = defineEmits<{
+	(ev: 'toggle', v: boolean): void;
+	(ev: 'remove'): void;
+}>();
+
+const props = withDefaults(defineProps<{
+	expanded?: boolean;
+	removable?: boolean;
+	draggable?: boolean;
+	error?: { arg: integer; expect: string; actual: string; };
+	warn?: { slot: integer; };
+}>(), {
+	expanded: true,
+	removable: true,
+	draggable: false,
 });
+
+let showBody = $ref(props.expanded);
+
+function toggleContent(show: boolean) {
+	showBody = show;
+	emit('toggle', show);
+}
 </script>
 
 <style lang="scss" scoped>
diff --git a/packages/client/src/scripts/gen-search-query.ts b/packages/client/src/scripts/gen-search-query.ts
deleted file mode 100644
index b413cbbab..000000000
--- a/packages/client/src/scripts/gen-search-query.ts
+++ /dev/null
@@ -1,30 +0,0 @@
-import * as Acct from 'misskey-js/built/acct';
-import { host as localHost } from '@/config';
-
-export async function genSearchQuery(v: any, q: string) {
-	let host: string;
-	let userId: string;
-	if (q.split(' ').some(x => x.startsWith('@'))) {
-		for (const at of q.split(' ').filter(x => x.startsWith('@')).map(x => x.substr(1))) {
-			if (at.includes('.')) {
-				if (at === localHost || at === '.') {
-					host = null;
-				} else {
-					host = at;
-				}
-			} else {
-				const user = await v.os.api('users/show', Acct.parse(at)).catch(x => null);
-				if (user) {
-					userId = user.id;
-				} else {
-					// todo: show error
-				}
-			}
-		}
-	}
-	return {
-		query: q.split(' ').filter(x => !x.startsWith('/') && !x.startsWith('@')).join(' '),
-		host: host,
-		userId: userId
-	};
-}
diff --git a/packages/client/src/scripts/get-user-name.ts b/packages/client/src/scripts/get-user-name.ts
deleted file mode 100644
index d499ea020..000000000
--- a/packages/client/src/scripts/get-user-name.ts
+++ /dev/null
@@ -1,3 +0,0 @@
-export default function(user: { name?: string | null, username: string }): string {
-	return user.name || user.username;
-}
diff --git a/packages/client/src/scripts/theme-editor.ts b/packages/client/src/scripts/theme-editor.ts
deleted file mode 100644
index 2c917e280..000000000
--- a/packages/client/src/scripts/theme-editor.ts
+++ /dev/null
@@ -1,81 +0,0 @@
-import { v4 as uuid } from 'uuid';
-
-import { themeProps, Theme } from './theme';
-
-export type Default = null;
-export type Color = string;
-export type FuncName = 'alpha' | 'darken' | 'lighten';
-export type Func = { type: 'func'; name: FuncName; arg: number; value: string; };
-export type RefProp = { type: 'refProp'; key: string; };
-export type RefConst = { type: 'refConst'; key: string; };
-export type Css = { type: 'css'; value: string; };
-
-export type ThemeValue = Color | Func | RefProp | RefConst | Css | Default;
-
-export type ThemeViewModel = [ string, ThemeValue ][];
-
-export const fromThemeString = (str?: string) : ThemeValue => {
-	if (!str) return null;
-	if (str.startsWith(':')) {
-		const parts = str.slice(1).split('<');
-		const name = parts[0] as FuncName;
-		const arg = parseFloat(parts[1]);
-		const value = parts[2].startsWith('@') ? parts[2].slice(1) : '';
-		return { type: 'func', name, arg, value };
-	} else if (str.startsWith('@')) {
-		return {
-			type: 'refProp',
-			key: str.slice(1),
-		};
-	} else if (str.startsWith('$')) {
-		return {
-			type: 'refConst',
-			key: str.slice(1),
-		};
-	} else if (str.startsWith('"')) {
-		return {
-			type: 'css',
-			value: str.substr(1).trim(),
-		};
-	} else {
-		return str;
-	}
-};
-
-export const toThemeString = (value: Color | Func | RefProp | RefConst | Css) => {
-	if (typeof value === 'string') return value;
-	switch (value.type) {
-		case 'func': return `:${value.name}<${value.arg}<@${value.value}`;
-		case 'refProp': return `@${value.key}`;
-		case 'refConst': return `$${value.key}`;
-		case 'css': return `" ${value.value}`;
-	}
-};
-
-export const convertToMisskeyTheme = (vm: ThemeViewModel, name: string, desc: string, author: string, base: 'dark' | 'light'): Theme => {
-	const props = { } as { [key: string]: string };
-	for (const [ key, value ] of vm) {
-		if (value === null) continue;
-		props[key] = toThemeString(value);
-	}
-
-	return {
-		id: uuid(),
-		name, desc, author, props, base
-	};
-};
-
-export const convertToViewModel = (theme: Theme): ThemeViewModel => {
-	const vm: ThemeViewModel = [];
-	// プロパティの登録
-	vm.push(...themeProps.map(key => [ key, fromThemeString(theme.props[key])] as [ string, ThemeValue ]));
-
-	// 定数の登録
-	const consts = Object
-		.keys(theme.props)
-		.filter(k => k.startsWith('$'))
-		.map(k => [ k, fromThemeString(theme.props[k]) ] as [ string, ThemeValue ]);
-
-		vm.push(...consts);
-	return vm;
-};