diff --git a/src/App.js b/src/App.js
index 6aeba32b2..879da48a7 100644
--- a/src/App.js
+++ b/src/App.js
@@ -25,6 +25,7 @@ import { useInterfaceStore } from 'src/stores/interface.js'
 import { useShoutStore } from 'src/stores/shout.js'
 import { useSyncConfigStore } from 'src/stores/sync_config.js'
 
+import { applyStyleConfig } from 'src/services/style_setter/style_setter.js'
 import { getOrCreateServiceWorker } from 'src/services/sw/sw'
 import {
   windowHeight,
@@ -76,7 +77,9 @@ export default {
   },
   created() {
     document.getElementById('modal').classList = ['-' + this.layoutType]
+
     useI18nStore().setLanguage()
+    applyStyleConfig(useSyncConfigStore().mergedConfig)
 
     // Create bound handlers
     this.updateScrollState = throttle(this.scrollHandler, 200)
diff --git a/src/boot/after_store.js b/src/boot/after_store.js
index 771c0e233..ed8fbb080 100644
--- a/src/boot/after_store.js
+++ b/src/boot/after_store.js
@@ -18,7 +18,7 @@ config.autoAddCss = false
 import App from '../App.vue'
 import backendInteractorService from '../services/backend_interactor_service/backend_interactor_service.js'
 import FaviconService from '../services/favicon_service/favicon_service.js'
-import { applyConfig } from '../services/style_setter/style_setter.js'
+import { applyStyleConfig } from '../services/style_setter/style_setter.js'
 import { initServiceWorker, updateFocus } from '../services/sw/sw.js'
 import {
   windowHeight,
@@ -26,12 +26,13 @@ import {
 } from '../services/window_utils/window_utils'
 import routes from './routes'
 
-import { useAnnouncementsStore } from 'src/stores/announcements'
-import { useAuthFlowStore } from 'src/stores/auth_flow'
-import { useI18nStore } from 'src/stores/i18n'
-import { useInstanceStore } from 'src/stores/instance'
-import { useInterfaceStore } from 'src/stores/interface'
-import { useOAuthStore } from 'src/stores/oauth'
+import { useAnnouncementsStore } from 'src/stores/announcements.js'
+import { useAuthFlowStore } from 'src/stores/auth_flow.js'
+import { useI18nStore } from 'src/stores/i18n.js'
+import { useInstanceStore } from 'src/stores/instance.js'
+import { useInterfaceStore } from 'src/stores/interface.js'
+import { useOAuthStore } from 'src/stores/oauth.js'
+import { useSyncConfigStore } from 'src/stores/sync_config.js'
 
 import VBodyScrollLock from 'src/directives/body_scroll_lock'
 import {
@@ -164,7 +165,6 @@ const setSettings = async ({ apiConfig, staticConfig, store }) => {
   } else {
     config = { ...staticConfig, ...apiConfig }
   }
-  console.trace(config)
 
   const copyInstanceIdentityOption = (path) => {
     if (get(config, path) !== undefined) {
@@ -567,7 +567,7 @@ const afterStoreSetup = async ({ pinia, store, storageError, i18n }) => {
     return Promise.reject(e)
   }
 
-  applyConfig(store.state.config, i18n.global)
+  applyStyleConfig(useSyncConfigStore().mergedConfig)
 
   // Now we can try getting the server settings and logging in
   // Most of these are preloaded into the index.html so blocking is minimized
diff --git a/src/components/settings_modal/tabs/appearance_tab.js b/src/components/settings_modal/tabs/appearance_tab.js
index b0f980eac..25ad6b665 100644
--- a/src/components/settings_modal/tabs/appearance_tab.js
+++ b/src/components/settings_modal/tabs/appearance_tab.js
@@ -281,7 +281,7 @@ const AppearanceTab = {
     },
     instanceWallpaperUsed() {
       return (
-        useInstanceStore().background &&
+        this.instanceWallpaper &&
         !this.$store.state.users.currentUser.background_image
       )
     },
@@ -312,9 +312,9 @@ const AppearanceTab = {
     },
     onImport(parsed, filename) {
       if (filename.endsWith('.json')) {
-        useInterfaceStore().setThemeCustom(parsed.source || parsed.theme)
+        this.setThemeCustom(parsed.source || parsed.theme)
       } else if (filename.endsWith('.iss')) {
-        useInterfaceStore().setStyleCustom(parsed)
+        this.setStyleCustom(parsed)
       }
     },
     onImportFailure(result) {
@@ -336,25 +336,42 @@ const AppearanceTab = {
       }
     },
     isThemeActive(key) {
-      return key === (this.mergedConfig.theme || useInstanceStore().theme)
+      return (
+        key ===
+        (useSyncConfigStore().mergedConfig.theme)
+      )
     },
     isStyleActive(key) {
-      return key === (this.mergedConfig.style || useInstanceStore().style)
+      return (
+        key ===
+        (useSyncConfigStore().mergedConfig.style)
+      )
     },
     isPaletteActive(key) {
-      return key === (this.mergedConfig.palette || useInstanceStore().palette)
+      return (
+        key ===
+        (useSyncConfigStore().mergedConfig.palette ||
+          useInstanceStore().palette)
+      )
     },
-    ...mapActions(useInterfaceStore, ['setStyle', 'setTheme']),
-    setPalette(name, data) {
-      useInterfaceStore().setPalette(name)
+    ...mapActions(useInterfaceStore, [
+      'setStyle',
+      'setStyleCustom',
+      'setPalette',
+      'setPaletteCustom',
+      'setTheme',
+      'setThemeCustom',
+    ]),
+    setLocalPalette(name, data) {
+      this.setPalette(name)
       this.userPalette = data
     },
-    setPaletteCustom(data) {
-      useInterfaceStore().setPaletteCustom(data)
+    setLocalPaletteCustom(data) {
+      this.setPaletteCustom(data)
       this.userPalette = data
     },
     resetTheming() {
-      useInterfaceStore().setStyle('stock')
+      this.setStyle('stock')
     },
     previewTheme(key, version, input) {
       let theme3
diff --git a/src/components/settings_modal/tabs/appearance_tab.vue b/src/components/settings_modal/tabs/appearance_tab.vue
index 75a06388d..85ca4be89 100644
--- a/src/components/settings_modal/tabs/appearance_tab.vue
+++ b/src/components/settings_modal/tabs/appearance_tab.vue
@@ -54,7 +54,7 @@
           :key="style.key"
           :data-theme-key="style.key"
           class="button-default theme-preview"
-          :class="{ toggled: isThemeActive(style.key), disabled: switchInProgress }"
+          :class="{ toggled: isStyleActive(style.key), disabled: switchInProgress }"
           :disabled="switchInProgress"
           @click="style.version === 'v2' ? setTheme(style.key) : setStyle(style.key)"
         >
@@ -90,7 +90,7 @@
               class="btn button-default palette-entry"
               :class="{ toggled: isPaletteActive(p.key), disabled: switchInProgress }"
               :disabled="switchInProgress"
-              @click="() => setPalette(p.key, p)"
+              @click="() => setLocalPalette(p.key, p)"
             >
               <div class="palette-label">
                 <label>
@@ -113,7 +113,7 @@
               class="btn button-default palette-entry"
               :class="{ toggled: isPaletteActive(p.key), disabled: switchInProgress }"
               :disabled="switchInProgress"
-              @click="() => setPalette(p.key, p)"
+              @click="() => setLocalPalette(p.key, p)"
             >
               <div class="palette-label">
                 <label>
@@ -143,7 +143,7 @@
               :compact="true"
               :apply="true"
               :disabled="switchInProgress"
-              @apply-palette="data => setPaletteCustom(data)"
+              @apply-palette="data => setLocalPaletteCustom(data)"
             />
           </template>
           <template v-else-if="customThemeVersion === 'v2'">
diff --git a/src/lib/style.js b/src/lib/style.js
new file mode 100644
index 000000000..350b242f5
--- /dev/null
+++ b/src/lib/style.js
@@ -0,0 +1,29 @@
+import { applyStyleConfig } from 'src/services/style_setter/style_setter.js'
+
+const APPEARANCE_SETTINGS_KEYS = new Set(
+  [
+    'sidebarColumnWidth',
+    'contentColumnWidth',
+    'notifsColumnWidth',
+    'themeEditorMinWidth',
+    'textSize',
+    'navbarSize',
+    'panelHeaderSize',
+    'forcedRoundness',
+    'emojiSize',
+    'emojiReactionsScale',
+  ].map((x) => 'simple.' + x),
+)
+
+export const piniaStylePlugin = ({ store, options }) => {
+  if (store.$id === 'sync_config') {
+    store.$onAction(({ name, args }) => {
+      if (name === 'setPreference') {
+        const { path, value } = args[0]
+        if (APPEARANCE_SETTINGS_KEYS.has(path)) {
+          applyStyleConfig(store.mergedConfig)
+        }
+      }
+    })
+  }
+}
diff --git a/src/main.js b/src/main.js
index 4bdc5aad1..a4269b4a7 100644
--- a/src/main.js
+++ b/src/main.js
@@ -27,6 +27,7 @@ import {
 import vuexModules from './modules/index.js'
 
 import { piniaLanguagePlugin } from 'src/lib/language.js'
+import { piniaStylePlugin } from 'src/lib/style.js'
 
 const currentLocale = (window.navigator.language || 'en').split('-')[0]
 
@@ -75,6 +76,7 @@ const persistedStateOptions = {
     const pinia = createPinia()
     pinia.use(piniaPersistPlugin())
     pinia.use(piniaLanguagePlugin)
+    pinia.use(piniaStylePlugin)
     pinia.use(piniaPushNotificationsPlugin)
 
     try {
diff --git a/src/modules/config.js b/src/modules/config.js
index 1b245e353..4dbd4f685 100644
--- a/src/modules/config.js
+++ b/src/modules/config.js
@@ -1,27 +1,15 @@
 import Cookies from 'js-cookie'
 import { set } from 'lodash'
 
-import messages from '../i18n/messages'
-import localeService from '../services/locale/locale.service.js'
-import { applyConfig } from '../services/style_setter/style_setter.js'
 import { defaultState, instanceDefaultConfig } from './default_config_state.js'
 
 import { useI18nStore } from 'src/stores/i18n.js'
 import { useInterfaceStore } from 'src/stores/interface.js'
 
+import messages from 'src/i18n/messages'
+import localeService from 'src/services/locale/locale.service.js'
+
 const BACKEND_LANGUAGE_COOKIE_NAME = 'userLanguage'
-const APPEARANCE_SETTINGS_KEYS = new Set([
-  'sidebarColumnWidth',
-  'contentColumnWidth',
-  'notifsColumnWidth',
-  'themeEditorMinWidth',
-  'textSize',
-  'navbarSize',
-  'panelHeaderSize',
-  'forcedRoundness',
-  'emojiSize',
-  'emojiReactionsScale',
-])
 
 /* TODO this is a bit messy.
  * We need to declare settings with their types and also deal with
@@ -46,7 +34,6 @@ const config = {
   mutations: {
     setOptionTemporarily(state, { name, value }) {
       set(state, name, value)
-      applyConfig(state)
     },
     setOption(state, { name, value }) {
       set(state, name, value)
@@ -95,9 +82,6 @@ const config = {
         }
       } else {
         commit('setOption', { name, value })
-        if (APPEARANCE_SETTINGS_KEYS.has(name)) {
-          applyConfig(state)
-        }
         if (name.startsWith('theme3hacks')) {
           dispatch('applyTheme', { recompile: true })
         }
diff --git a/src/services/style_setter/style_setter.js b/src/services/style_setter/style_setter.js
index 08034d485..495070b0d 100644
--- a/src/services/style_setter/style_setter.js
+++ b/src/services/style_setter/style_setter.js
@@ -255,7 +255,7 @@ const extractStyleConfig = ({
 
 const defaultStyleConfig = extractStyleConfig(defaultState)
 
-export const applyConfig = (input) => {
+export const applyStyleConfig = (input) => {
   const config = extractStyleConfig(input)
 
   if (config === defaultStyleConfig) {
diff --git a/src/stores/emoji.js b/src/stores/emoji.js
index 5fc854323..e2e5b48f5 100644
--- a/src/stores/emoji.js
+++ b/src/stores/emoji.js
@@ -209,7 +209,6 @@ export const useEmojiStore = defineStore('emoji', {
             )
           }
 
-          console.log('EMOJI', useInstanceStore().server)
           const emoji = Object.entries(values)
             .map(([key, value]) => {
               const imageUrl = value.image_url
diff --git a/src/stores/interface.js b/src/stores/interface.js
index 66fe94fad..7b6a08f33 100644
--- a/src/stores/interface.js
+++ b/src/stores/interface.js
@@ -243,7 +243,8 @@ export const useInterfaceStore = defineStore('interface', {
       this.resetThemeV3Palette()
       this.resetThemeV2()
 
-      useSyncConfigStore().setPreference({ path: 'palette', value })
+      useSyncConfigStore().setPreference({ path: 'simple.palette', value })
+      useSyncConfigStore().pushSyncConfig()
 
       this.applyTheme({ recompile: true })
     },
@@ -251,7 +252,11 @@ export const useInterfaceStore = defineStore('interface', {
       this.resetThemeV3Palette()
       this.resetThemeV2()
 
-      useSyncConfigStore().setPreference({ path: 'paletteCustomData', value })
+      useSyncConfigStore().setPreference({
+        path: 'simple.paletteCustomData',
+        value,
+      })
+      useSyncConfigStore().pushSyncConfig()
 
       this.applyTheme({ recompile: true })
     },
@@ -277,7 +282,8 @@ export const useInterfaceStore = defineStore('interface', {
       this.resetThemeV2()
       this.resetThemeV3Palette()
 
-      useSyncConfigStore().setPreference({ path: 'style', value })
+      useSyncConfigStore().setPreference({ path: 'simple.style', value })
+      useSyncConfigStore().pushSyncConfig()
       this.useStylePalette = true
 
       this.applyTheme({ recompile: true }).then(() => {
@@ -289,7 +295,11 @@ export const useInterfaceStore = defineStore('interface', {
       this.resetThemeV2()
       this.resetThemeV3Palette()
 
-      useSyncConfigStore().setPreference({ path: 'styleCustomData', value })
+      useSyncConfigStore().setPreference({
+        path: 'simple.styleCustomData',
+        value,
+      })
+      useSyncConfigStore().pushSyncConfig()
 
       this.useStylePalette = true
       this.applyTheme({ recompile: true }).then(() => {
@@ -315,7 +325,8 @@ export const useInterfaceStore = defineStore('interface', {
       this.resetThemeV3Palette()
       this.resetThemeV2()
 
-      useSyncConfigStore().setPreference({ name: 'theme', value })
+      useSyncConfigStore().setPreference({ path: 'simple.theme', value })
+      useSyncConfigStore().pushSyncConfig()
 
       this.applyTheme({ recompile: true })
     },
@@ -324,32 +335,45 @@ export const useInterfaceStore = defineStore('interface', {
       this.resetThemeV3Palette()
       this.resetThemeV2()
 
-      useSyncConfigStore().setPreference({ path: 'customTheme', value })
-      useSyncConfigStore().setPreference({ path: 'customThemeSource', value })
+      useSyncConfigStore().setPreference({ path: 'simple.customTheme', value })
+      useSyncConfigStore().setPreference({
+        path: 'simple.customThemeSource',
+        value,
+      })
+      useSyncConfigStore().pushSyncConfig()
 
       this.applyTheme({ recompile: true })
     },
     resetThemeV3() {
-      useSyncConfigStore().setPreference({ path: 'style', value: null })
+      useSyncConfigStore().setPreference({ path: 'simple.style', value: null })
       useSyncConfigStore().setPreference({
-        path: 'styleCustomData',
+        path: 'simple.styleCustomData',
         value: null,
       })
+      useSyncConfigStore().pushSyncConfig()
     },
     resetThemeV3Palette() {
-      useSyncConfigStore().setPreference({ path: 'palette', value: null })
       useSyncConfigStore().setPreference({
-        name: 'paletteCustomData',
+        path: 'simple.palette',
         value: null,
       })
+      useSyncConfigStore().setPreference({
+        path: 'simple.paletteCustomData',
+        value: null,
+      })
+      useSyncConfigStore().pushSyncConfig()
     },
     resetThemeV2() {
-      useSyncConfigStore().setPreference({ path: 'theme', value: null })
-      useSyncConfigStore().setPreference({ path: 'customTheme', value: null })
+      useSyncConfigStore().setPreference({ path: 'simple.theme', value: null })
       useSyncConfigStore().setPreference({
-        path: 'customThemeSource',
+        path: 'simple.customTheme',
         value: null,
       })
+      useSyncConfigStore().setPreference({
+        path: 'simple.customThemeSource',
+        value: null,
+      })
+      useSyncConfigStore().pushSyncConfig()
     },
     async getThemeData() {
       const getData = async (resource, index, customData, name) => {
@@ -406,13 +430,13 @@ export const useInterfaceStore = defineStore('interface', {
         styleCustomData: userStyleCustomData,
         palette: userPaletteName,
         paletteCustomData: userPaletteCustomData,
-      } = window.vuex.state.config
+      } = useSyncConfigStore().mergedConfig
 
       let {
         theme: userThemeV2Name,
         customTheme: userThemeV2Snapshot,
         customThemeSource: userThemeV2Source,
-      } = window.vuex.state.config
+      } = useSyncConfigStore().mergedConfig
 
       let majorVersionUsed
 
@@ -516,9 +540,10 @@ export const useInterfaceStore = defineStore('interface', {
 
         if (this.useStylePalette) {
           useSyncConfigStore().setPreference({
-            path: 'palette',
+            path: 'path.palette',
             value: firstStylePaletteName,
           })
+          useSyncConfigStore().pushSyncConfig()
         }
 
         this.paletteNameUsed = palette.nameUsed