diff --git a/dist/icons/fabric-icons-2-63c99abf.woff b/dist/icons/fabric-icons-2-63c99abf.woff
new file mode 100644
index 0000000..88295a5
Binary files /dev/null and b/dist/icons/fabric-icons-2-63c99abf.woff differ
diff --git a/dist/styles.css b/dist/styles.css
index 48437d4..bba77a1 100644
--- a/dist/styles.css
+++ b/dist/styles.css
@@ -98,9 +98,15 @@ i.ms-Nav-chevron {
     vertical-align: top;
 }
 .btn-group .btn.system {
-    position: sticky;
+    position: relative;
     z-index: 10;
 }
+nav.hide-btns .btn-group .btn {
+    display: none;
+}
+nav.hide-btns .btn-group .btn.system {
+    display: inline-block;
+}
 .btn-group .btn:hover {
     background-color: #0001;
 }
diff --git a/package.json b/package.json
index e32dfd9..5d6d14d 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,7 @@
     "@types/redux-thunk": "^2.1.0",
     "@types/reselect": "^2.2.0",
     "@yang991178/electron-proxy-agent": "^1.2.1",
+    "@yang991178/rss-parser": "^3.8.1",
     "electron": "^8.3.0",
     "electron-react-devtools": "^0.5.3",
     "electron-window-state": "^5.0.3",
@@ -35,7 +36,6 @@
     "redux-devtools": "^3.5.0",
     "redux-thunk": "^2.3.0",
     "reselect": "^4.0.0",
-    "rss-parser": "^3.8.0",
     "ts-loader": "^7.0.4",
     "typescript": "^3.9.2",
     "webpack": "^4.43.0",
diff --git a/src/components/menu.tsx b/src/components/menu.tsx
index faefac7..aaeab88 100644
--- a/src/components/menu.tsx
+++ b/src/components/menu.tsx
@@ -23,9 +23,9 @@ export class Menu extends React.Component<MenuProps> {
         {
             links: [
                 {
-                    name: "主页",
-                    key: "home",
-                    icon: "Home",
+                    name: "搜索",
+                    key: "search",
+                    icon: "Search",
                     url: null
                 },
                 {
diff --git a/src/components/nav.tsx b/src/components/nav.tsx
index 101004c..c9636cb 100644
--- a/src/components/nav.tsx
+++ b/src/components/nav.tsx
@@ -1,5 +1,5 @@
 import * as React from "react"
-import { ipcRenderer } from "electron"
+import { ipcRenderer, remote } from "electron"
 import { Icon } from "@fluentui/react/lib/Icon"
 import { AppState, MenuStatus } from "../scripts/models/app"
 import { NavReduxProps } from "../containers/nav-container"
@@ -12,14 +12,46 @@ type NavProps = NavReduxProps & {
     settings: () => void
 }
 
-class Nav extends React.Component<NavProps> {
-    ipcSend(message:string) {
-        ipcRenderer.send(message)
+type NavState = {
+    maximized: boolean,
+    window: Electron.BrowserWindow
+}
+
+class Nav extends React.Component<NavProps, NavState> {
+    constructor(props) {
+        super(props)
+        let window = remote.getCurrentWindow()
+        window.on("maximize", () => {
+            this.setState({ maximized: true })
+        })
+        window.on("unmaximize", () => {
+            this.setState({ maximized: false })
+        })
+        this.state = {
+            maximized: remote.getCurrentWindow().isMaximized(),
+            window: window
+        }
+    }
+
+    minimize = () => {
+        this.state.window.minimize()
+    }
+    maximize = () => {
+        if (this.state.maximized) {
+            this.state.window.unmaximize()
+        } else {
+            this.state.window.maximize()
+        }
+        this.setState({ maximized: !this.state.maximized })
+    }
+    close = () => {
+        this.state.window.close()
     }
 
     canFetch = () => this.props.state.sourceInit && this.props.state.feedInit && !this.props.state.fetchingItems
     fetching = () => !this.canFetch() ? " fetching" : ""
     menuOn = () => this.props.state.menu == MenuStatus.Open ? " on" : ""
+    hideButtons = () => (this.props.state.menu == MenuStatus.Open || this.props.state.settings.display) ? "hide-btns" : ""
 
     fetch = () => {
         if (this.canFetch()) this.props.fetch()
@@ -27,7 +59,7 @@ class Nav extends React.Component<NavProps> {
 
     render() {
         return (
-            <nav>
+            <nav className={this.hideButtons()}>
                 <div className="btn-group">
                     <a className="btn" title="菜单" onClick={this.props.menu}><Icon iconName="GlobalNavButton" /></a>
                 </div>
@@ -41,9 +73,11 @@ class Nav extends React.Component<NavProps> {
                     <a className="btn" title="视图"><Icon iconName="View" /></a>
                     <a className="btn" title="选项" onClick={this.props.settings}><Icon iconName="Settings" /></a>
                     <span className="seperator"></span>
-                    <a className={"btn system"+this.menuOn()} title="最小化" onClick={() => this.ipcSend("minimize")} style={{fontSize: 12}}><Icon iconName="Remove" /></a>
-                    <a className={"btn system"+this.menuOn()} title="最大化" onClick={() => this.ipcSend("maximize")} style={{fontSize: 10}}><Icon iconName="Checkbox" /></a>
-                    <a className={"btn system close"+this.menuOn()} title="关闭" onClick={() => this.ipcSend("close")}><Icon iconName="Cancel" /></a>
+                    <a className={"btn system"+this.menuOn()} title="最小化" onClick={this.minimize} style={{fontSize: 12}}><Icon iconName="Remove" /></a>
+                    <a className={"btn system"+this.menuOn()} title="最大化" onClick={this.maximize}>
+                        {this.state.maximized ? <Icon iconName="ChromeRestore" style={{fontSize: 11}} /> :<Icon iconName="Checkbox" style={{fontSize: 10}} />}
+                    </a>
+                    <a className={"btn system close"+this.menuOn()} title="关闭" onClick={this.close}><Icon iconName="Cancel" /></a>
                 </div>
             </nav>
         )
diff --git a/src/components/settings/proxy.tsx b/src/components/settings/proxy.tsx
index 86f0942..7d4de7f 100644
--- a/src/components/settings/proxy.tsx
+++ b/src/components/settings/proxy.tsx
@@ -49,7 +49,7 @@ class ProxyTab extends React.Component {
                     </Stack.Item>
                     <Stack.Item>
                         <DefaultButton 
-                            disabled={urlTest(this.state.pacUrl)}
+                            disabled={!urlTest(this.state.pacUrl)}
                             type="sumbit" 
                             text="设置" />
                     </Stack.Item>
diff --git a/src/electron.ts b/src/electron.ts
index 0c8f895..da74fe2 100644
--- a/src/electron.ts
+++ b/src/electron.ts
@@ -10,6 +10,7 @@ function createWindow() {
     })
     // Create the browser window.
     mainWindow = new BrowserWindow({
+        backgroundColor: "#faf9f8",
         x: mainWindowState.x,
         y: mainWindowState.y,
         width: mainWindowState.width,
@@ -40,13 +41,3 @@ app.on('activate', function () {
         createWindow()
     }
 })
-
-ipcMain.on('minimize', e => mainWindow.minimize())
-ipcMain.on('maximize', e => {
-    if (mainWindow.isMaximized()) {
-        mainWindow.unmaximize()
-    } else {
-        mainWindow.maximize()
-    }
-})
-ipcMain.on('close', e => mainWindow.close())
\ No newline at end of file
diff --git a/src/scripts/models/item.ts b/src/scripts/models/item.ts
index 009c2e8..39093ec 100644
--- a/src/scripts/models/item.ts
+++ b/src/scripts/models/item.ts
@@ -2,7 +2,7 @@ import * as db from "../db"
 import { rssParser, domParser, htmlDecode, ActionStatus, AppThunk } from "../utils"
 import { RSSSource } from "./source"
 import { FeedActionTypes, INIT_FEED, LOAD_MORE } from "./feed"
-import Parser = require("rss-parser")
+import Parser = require("@yang991178/rss-parser")
 
 export class RSSItem {
     id: number
diff --git a/src/scripts/models/source.ts b/src/scripts/models/source.ts
index 2aa33f0..bcbbe61 100644
--- a/src/scripts/models/source.ts
+++ b/src/scripts/models/source.ts
@@ -1,4 +1,4 @@
-import Parser = require("rss-parser")
+import Parser = require("@yang991178/rss-parser")
 import * as db from "../db"
 import { rssParser, faviconPromise, ActionStatus, AppThunk } from "../utils"
 import { RSSItem, fetchItemsSuccess, insertItems } from "./item"
diff --git a/src/scripts/utils.ts b/src/scripts/utils.ts
index c703ff8..8dd9e8c 100644
--- a/src/scripts/utils.ts
+++ b/src/scripts/utils.ts
@@ -16,7 +16,7 @@ export type AppThunk<ReturnType = void> = ThunkAction<
 
 export type AppDispatch = ThunkDispatch<RootState, undefined, AnyAction>
 
-import Parser = require("rss-parser")
+import Parser = require("@yang991178/rss-parser")
 const customFields = {
     item: ["thumb", "image", ["content:encoded", "fullContent"]] as Parser.CustomFieldItem[]
 }