diff --git a/Birdmap.API/ClientApp/src/App.tsx b/Birdmap.API/ClientApp/src/App.tsx
index 4e7d569..ff99d2e 100644
--- a/Birdmap.API/ClientApp/src/App.tsx
+++ b/Birdmap.API/ClientApp/src/App.tsx
@@ -1,24 +1,17 @@
-import { Box, Container, IconButton, Menu, MenuItem, MenuList, Paper, Grow, Popper } from '@material-ui/core';
-import AccountCircle from '@material-ui/icons/AccountCircle';
-import AppBar from '@material-ui/core/AppBar';
-import { positions } from '@material-ui/system';
+import { Box, Paper } from '@material-ui/core';
+import { blueGrey, grey, orange } from '@material-ui/core/colors';
 import { createMuiTheme, createStyles, makeStyles, Theme } from '@material-ui/core/styles';
-import Toolbar from '@material-ui/core/Toolbar';
-import Typography from '@material-ui/core/Typography';
 import { ThemeProvider } from '@material-ui/styles';
-import React, { useState, } from 'react';
-import { BrowserRouter, NavLink, Redirect, Route, Switch, Link } from 'react-router-dom';
-import BirdmapTitle from './components/appBar/BirdmapTitle';
+import React, { useState } from 'react';
+import { BrowserRouter, Redirect, Route, Switch } from 'react-router-dom';
+import BirdmapBar from './components/appBar/BirdmapBar';
 import Auth from './components/auth/Auth';
 import AuthService from './components/auth/AuthService';
-import { ClickAwayListener } from '@material-ui/core';
-import MapContainer from './components/heatmap/Heatmap';
-import Devices from './components/devices/Devices';
-import { blueGrey, blue, orange, grey } from '@material-ui/core/colors';
-import DevicesContextProvider from './contexts/DevicesContextProvider'
 import Dashboard from './components/dashboard/Dashboard';
+import Devices from './components/devices/Devices';
+import MapContainer from './components/heatmap/Heatmap';
 import Logs from './components/logs/Logs';
-
+import DevicesContextProvider from './contexts/DevicesContextProvider';
 
 const theme = createMuiTheme({
     palette: {
@@ -27,14 +20,13 @@ const theme = createMuiTheme({
             dark: grey[400],
         },
         secondary: {
-            main: orange[200],
+            main: blueGrey[700],
             dark: blueGrey[50],
         }
     },
 });
 
 function App() {
-
     const [authenticated, setAuthenticated] = useState(AuthService.isAuthenticated());
     const [isAdmin, setIsAdmin] = useState(AuthService.isAdmin());
 
@@ -61,6 +53,7 @@ function App() {
         return <Devices isAdmin={isAdmin}/>;
 
     };
+
     const HeatmapComponent = () => {
         return (
             <Paper elevation={0}>
@@ -69,16 +62,46 @@ function App() {
         );
     };
 
+    const HeaderComponent = () => {
+        return (
+            <BirdmapBar onLogout={AuthService.logout} isAdmin={isAdmin} isAuthenticated={authenticated}/>
+        );
+    }
+
+    const PredicateRoute = ({ component: Component, predicate: Predicate, ...rest }: { [x: string]: any, component: any, predicate: any }) => {
+        return (
+            <PredicateRouteInternal {...rest} header={HeaderComponent} body={Component} predicate={Predicate}/>
+        );
+    }
+
+    const PublicRoute = ({ component: Component, ...rest }: { [x: string]: any, component: any }) => {
+        return (
+            <PredicateRoute {...rest} component={Component} predicate={true}/>
+        );
+    }
+
+    const PrivateRoute = ({ component: Component, ...rest }: { [x: string]: any, component: any }) => {
+        return (
+            <PredicateRoute {...rest} component={Component} predicate={authenticated}/>
+        );
+    }
+
+    const AdminRoute = ({ component: Component, ...rest }: { [x: string]: any, component: any }) => {
+        return (
+            <PredicateRoute {...rest} component={Component} predicate={authenticated && isAdmin}/>
+        );
+    }
+
     return (
         <ThemeProvider theme={theme}>
             <BrowserRouter>
                 <Switch>
-                    <PublicRoute path="/login" exact component={AuthComponent} />
-                    <AdminRoute path="/logs" exact authenticated={authenticated} isAdmin={isAdmin} component={LogsComponent} />
+                    <PublicRoute      exact path="/login"           component={AuthComponent} />
+                    <AdminRoute       exact path="/logs"            component={LogsComponent} />
                     <DevicesContextProvider>
-                        <PrivateRoute path="/" exact authenticated={authenticated} component={DashboardComponent} />
-                        <PrivateRoute path="/devices/:id?" exact authenticated={authenticated} component={DevicesComponent} />
-                        <PrivateRoute path="/heatmap" exact authenticated={authenticated} component={HeatmapComponent} />
+                        <PrivateRoute exact path="/"                component={DashboardComponent} />
+                        <PrivateRoute exact path="/devices/:id?"    component={DevicesComponent} />
+                        <PrivateRoute exact path="/heatmap"         component={HeatmapComponent} />
                     </DevicesContextProvider>
                 </Switch>
             </BrowserRouter>
@@ -88,123 +111,26 @@ function App() {
 
 export default App;
 
-const PublicRoute = ({ component: Component, ...rest }: { [x: string]: any, component: any}) => {
+const PredicateRouteInternal = ({ header: HeaderComponent, body: BodyComponent, predicate: Predicate, ...rest }: { [x: string]: any, header: any, body: any, predicate: any }) => {
     return (
         <Route {...rest} render={matchProps => (
-            <DefaultLayout component={Component} authenticated={false} isAdmin={false} {...matchProps} />
-        )} />
-    );
-}
-
-const AdminRoute = ({ component: Component, authenticated: Authenticated, isAdmin: IsAdmin, ...rest }: { [x: string]: any, component: any, authenticated: any, isAdmin: any }) => {
-    return (
-        <Route {...rest} render={matchProps => (
-            Authenticated && IsAdmin
-                ? <DefaultLayout component={Component} authenticated={Authenticated} {...matchProps} />
+            Predicate
+                ? <DefaultLayoutInternal header={HeaderComponent} body={BodyComponent} {...matchProps} />
                 : <Redirect to='/login' />
         )} />
     );
 };
 
-const PrivateRoute = ({ component: Component, authenticated: Authenticated, ...rest }: { [x: string]: any, component: any, authenticated: any }) => {
-    return (
-        <Route {...rest} render={matchProps => (
-            Authenticated
-                ? <DefaultLayout component={Component} authenticated={Authenticated} {...matchProps} />
-                : <Redirect to='/login' />
-        )} />
-    );
-};
-
-const DefaultLayout = ({ component: Component, authenticated: Authenticated, ...rest }: { [x: string]: any, component: any, authenticated: any }) => {
+const DefaultLayoutInternal = ({ header: HeaderComponent, body: BodyComponent, ...rest }: { [x: string]: any, header: any, body: any }) => {
     const classes = useDefaultLayoutStyles();
-    const [open, setOpen] = React.useState(false);
-    const anchorRef = React.useRef<HTMLButtonElement>(null);
-
-    const handleToggle = () => {
-        setOpen((prevOpen) => !prevOpen);
-    };
-
-    const handleClose = (event: React.MouseEvent<EventTarget>) => {
-        if (anchorRef.current && anchorRef.current.contains(event.target as HTMLElement)) {
-            return;
-        }
-
-        setOpen(false);
-    };
-
-    const handleLogout = (event: React.MouseEvent<EventTarget>) => {
-        if (anchorRef.current && anchorRef.current.contains(event.target as HTMLElement)) {
-            return;
-        }
-
-        AuthService.logout();
-        setOpen(false);
-    };
-
-    function handleListKeyDown(event: React.KeyboardEvent) {
-        if (event.key === 'Tab') {
-            event.preventDefault();
-            setOpen(false);
-        }
-    }
-
-    const prevOpen = React.useRef(open);
-    React.useEffect(() => {
-        if (prevOpen.current === true && open === false) {
-            anchorRef.current!.focus();
-        }
-
-        prevOpen.current = open;
-    }, [open]);
-
-
-    const renderNavLinks = () => {
-        return Authenticated
-            ? <Container className={classes.nav_menu}>
-                <NavLink exact to="/" className={classes.nav_menu_item} activeClassName={classes.nav_menu_item_active}>Dashboard</NavLink>
-                {}
-                <NavLink to="/devices" className={classes.nav_menu_item} activeClassName={classes.nav_menu_item_active}>Devices</NavLink>
-                <NavLink exact to="/heatmap" className={classes.nav_menu_item} activeClassName={classes.nav_menu_item_active}>Heatmap</NavLink>
-                <IconButton className={classes.nav_menu_icon}
-                    ref={anchorRef}
-                    aria-haspopup="true"
-                    aria-controls={open ? 'menu-list-grow' : undefined}
-                    aria-label="account of current user"
-                    onClick={handleToggle}>
-                    <AccountCircle/>
-                </IconButton>
-                <Popper open={open} anchorEl={anchorRef.current} role={undefined} transition disablePortal>
-                    {({ TransitionProps, placement }) => (
-                        <Grow
-                            {...TransitionProps}
-                            style={{ transformOrigin: placement === 'bottom' ? 'center top' : 'center bottom' }}>
-                            <Paper>
-                                <ClickAwayListener onClickAway={handleClose}>
-                                    <MenuList autoFocusItem={open} id="menu-list-grow" onKeyDown={handleListKeyDown}>
-                                        <MenuItem onClick={handleLogout} component={Link} {...{ to: '/login' }}>Logout</MenuItem>
-                                    </MenuList>
-                                </ClickAwayListener>
-                            </Paper>
-                        </Grow>
-                    )}
-                </Popper>
-            </Container>
-            : null;
-    };
 
     return (
         <React.Fragment>
-            <AppBar position="static" className={classes.bar_root}>
-                <Toolbar>
-                    <BirdmapTitle />
-                    <Typography component={'span'} className={classes.typo}>
-                        {renderNavLinks()}
-                    </Typography>
-                </Toolbar>
-            </AppBar>
-            <Box zIndex="modal" className={classes.box_root}>
-                <Component {...rest} />
+            <Box className={classes.header}>
+                <HeaderComponent />
+            </Box>
+            <Box className={classes.body}>
+                <BodyComponent {...rest} />
             </Box>
         </React.Fragment>
     );
@@ -212,46 +138,12 @@ const DefaultLayout = ({ component: Component, authenticated: Authenticated, ...
 
 const useDefaultLayoutStyles = makeStyles((theme: Theme) =>
     createStyles({
-        bar_root: {
+        header: {
             height: '7%',
         },
-        box_root: {
+        body: {
             backgroundColor: theme.palette.primary.dark,
             height: '93%',
-        },
-        typo: {
-            marginLeft: 'auto',
-            color: 'white',
-        },
-        nav_menu: {
-            display: 'flex',
-            flexDirection: 'row',
-            alignItems: 'center',
-        },
-        nav_menu_icon: {
-            color: 'inherit',
-            marginLeft: '24px',
-            '&:hover': {
-                color: 'inherit',
-            }
-        },
-        nav_menu_item: {
-            textDecoration: 'none',
-            fontWeight: 'normal',
-            color: 'inherit',
-            marginLeft: '24px',
-            '&:hover': {
-                color: 'inherit',
-            }
-        },
-        nav_menu_item_active: {
-            textDecoration: 'underline',
-            fontWeight: 'bold',
-            color: 'inherit',
-            marginLeft: '24px',
-            '&:hover': {
-                color: 'inherit',
-            }
-        },
+        }
     }),
 );
\ No newline at end of file
diff --git a/Birdmap.API/ClientApp/src/components/appBar/BirdmapBar.tsx b/Birdmap.API/ClientApp/src/components/appBar/BirdmapBar.tsx
new file mode 100644
index 0000000..793e4f8
--- /dev/null
+++ b/Birdmap.API/ClientApp/src/components/appBar/BirdmapBar.tsx
@@ -0,0 +1,136 @@
+import { ClickAwayListener, Container, createStyles, Grow, IconButton, makeStyles, MenuItem, MenuList, Paper, Popper, Theme } from '@material-ui/core';
+import AppBar from '@material-ui/core/AppBar';
+import Toolbar from '@material-ui/core/Toolbar';
+import Typography from '@material-ui/core/Typography';
+import AccountCircle from '@material-ui/icons/AccountCircle';
+import React from 'react';
+import { Link, NavLink } from 'react-router-dom';
+import BirdmapTitle from './BirdmapTitle';
+
+export default function BirdmapBar(props: { onLogout: () => void; isAuthenticated: any; isAdmin: any; }) {
+    const classes = useAppbarStyles();
+    const [open, setOpen] = React.useState(false);
+    const anchorRef = React.useRef<HTMLButtonElement>(null);
+
+    const handleToggle = () => {
+        setOpen((prevOpen) => !prevOpen);
+    };
+
+    const handleClose = (event: React.MouseEvent<EventTarget>) => {
+        if (anchorRef.current && anchorRef.current.contains(event.target as HTMLElement)) {
+            return;
+        }
+
+        setOpen(false);
+    };
+
+    const handleLogout = (event: React.MouseEvent<EventTarget>) => {
+        if (anchorRef.current && anchorRef.current.contains(event.target as HTMLElement)) {
+            return;
+        }
+
+        props.onLogout();
+        setOpen(false);
+    };
+
+    function handleListKeyDown(event: React.KeyboardEvent) {
+        if (event.key === 'Tab') {
+            event.preventDefault();
+            setOpen(false);
+        }
+    }
+
+    const prevOpen = React.useRef(open);
+    React.useEffect(() => {
+        if (prevOpen.current === true && open === false) {
+            anchorRef.current!.focus();
+        }
+
+        prevOpen.current = open;
+    }, [open]);
+
+    const renderNavLinks = () => {
+        return props.isAuthenticated
+            ? <Container className={classes.nav_menu}>
+                <NavLink exact to="/" className={classes.nav_menu_item} activeClassName={classes.nav_menu_item_active}>Dashboard</NavLink>
+                {props.isAdmin ? <NavLink exact to="/logs" className={classes.nav_menu_item} activeClassName={classes.nav_menu_item_active}>Logs</NavLink> : null}
+                <NavLink to="/devices" className={classes.nav_menu_item} activeClassName={classes.nav_menu_item_active}>Devices</NavLink>
+                <NavLink exact to="/heatmap" className={classes.nav_menu_item} activeClassName={classes.nav_menu_item_active}>Heatmap</NavLink>
+                <IconButton className={classes.nav_menu_icon}
+                    ref={anchorRef}
+                    aria-haspopup="true"
+                    aria-controls={open ? 'menu-list-grow' : undefined}
+                    aria-label="account of current user"
+                    onClick={handleToggle}>
+                    <AccountCircle />
+                </IconButton>
+                <Popper open={open} anchorEl={anchorRef.current} role={undefined} transition disablePortal>
+                    {({ TransitionProps, placement }) => (
+                        <Grow
+                            {...TransitionProps}
+                            style={{ transformOrigin: placement === 'bottom' ? 'center top' : 'center bottom' }}>
+                            <Paper>
+                                <ClickAwayListener onClickAway={handleClose}>
+                                    <MenuList autoFocusItem={open} id="menu-list-grow" onKeyDown={handleListKeyDown}>
+                                        <MenuItem onClick={handleLogout} component={Link} {...{ to: '/login' }}>Logout</MenuItem>
+                                    </MenuList>
+                                </ClickAwayListener>
+                            </Paper>
+                        </Grow>
+                    )}
+                </Popper>
+            </Container>
+            : null;
+    };
+
+    return (
+        <AppBar position="static">
+            <Toolbar>
+                <BirdmapTitle />
+                <Typography component={'span'} className={classes.typo}>
+                    {renderNavLinks()}
+                </Typography>
+            </Toolbar>
+        </AppBar>
+    )
+};
+
+
+const useAppbarStyles = makeStyles((theme: Theme) =>
+    createStyles({
+        typo: {
+            marginLeft: 'auto',
+            color: 'white',
+        },
+        nav_menu: {
+            display: 'flex',
+            flexDirection: 'row',
+            alignItems: 'center',
+        },
+        nav_menu_icon: {
+            color: 'inherit',
+            marginLeft: '24px',
+            '&:hover': {
+                color: 'inherit',
+            }
+        },
+        nav_menu_item: {
+            textDecoration: 'none',
+            fontWeight: 'normal',
+            color: 'inherit',
+            marginLeft: '24px',
+            '&:hover': {
+                color: 'inherit',
+            }
+        },
+        nav_menu_item_active: {
+            textDecoration: 'underline',
+            fontWeight: 'bold',
+            color: 'inherit',
+            marginLeft: '24px',
+            '&:hover': {
+                color: 'inherit',
+            }
+        },
+    }),
+);
diff --git a/Birdmap.API/ClientApp/src/components/heatmap/Heatmap.jsx b/Birdmap.API/ClientApp/src/components/heatmap/Heatmap.jsx
index 61f83e7..e024d06 100644
--- a/Birdmap.API/ClientApp/src/components/heatmap/Heatmap.jsx
+++ b/Birdmap.API/ClientApp/src/components/heatmap/Heatmap.jsx
@@ -1,4 +1,5 @@
 /*global google*/
+import { Box, withStyles } from '@material-ui/core';
 import GoogleMapReact from 'google-map-react';
 import React, { Component } from 'react';
 import C from '../../common/Constants';
@@ -8,7 +9,14 @@ import DeviceMarker from './DeviceMarker';
 const lat_offset = 0.000038;
 const lng_offset = -0.000058;
 
-export default class MapContainer extends Component {
+const styles = theme => ({
+    root: { 
+        height: '93vh', 
+        width: '100%', 
+    }
+});
+
+class MapContainer extends Component {
     constructor(props) {
         super(props);
 
@@ -64,6 +72,8 @@ export default class MapContainer extends Component {
     }
 
     render() {
+        const {classes} = this.props;
+
         const heatMapData = {
             positions: this.state.heatmapPoints,
             options: {
@@ -92,7 +102,7 @@ export default class MapContainer extends Component {
         ));
 
         return (
-            <div style={{ height: '93vh', width: '100%' }}>
+            <Box className={classes.root}>
                 <GoogleMapReact
                     bootstrapURLKeys={{
                         key: ["AIzaSyCZ51VFfxqZ2GkCmVrcNZdUKsM0fuBQUCY"],
@@ -106,7 +116,9 @@ export default class MapContainer extends Component {
                     defaultCenter={this.state.center}>
                     {Markers}
                 </GoogleMapReact>
-            </div>
+            </Box>
         );
     }
-}
\ No newline at end of file
+}
+
+export default withStyles(styles)(MapContainer);
\ No newline at end of file
diff --git a/Birdmap.API/ClientApp/src/components/logs/Logs.jsx b/Birdmap.API/ClientApp/src/components/logs/Logs.jsx
index 419d969..2e69fd3 100644
--- a/Birdmap.API/ClientApp/src/components/logs/Logs.jsx
+++ b/Birdmap.API/ClientApp/src/components/logs/Logs.jsx
@@ -1,8 +1,19 @@
-import { Button, Checkbox, List, ListItem, ListItemIcon, ListItemText, Paper } from '@material-ui/core';
+import { Box, Button, Checkbox, List, ListItem, ListItemIcon, ListItemText, Paper, withStyles } from '@material-ui/core';
+import { blueGrey } from '@material-ui/core/colors';
 import React, { Component } from 'react';
 import LogService from './LogService';
 
-export class Logs extends Component {
+const styles = theme => ({
+    root: {
+        padding: '64px',
+        backgroundColor: theme.palette.primary.dark,
+    },
+    paper: {
+        backgroundColor: blueGrey[50],
+    },
+});
+
+class Logs extends Component {
     constructor(props) {
         super(props)
     
@@ -10,6 +21,7 @@ export class Logs extends Component {
             service: null,
             files: [],
             checked: [],
+            selectAllChecked: false,
         }
     }
     
@@ -35,7 +47,18 @@ export class Logs extends Component {
         this.setState({checked: newChecked});
     }
 
-    downloadChecked = () => {
+    handleSelectAllToggle = () => {
+        this.setState({selectAllChecked: !this.state.selectAllChecked});
+        if (this.state.selectAllChecked) {
+            this.setState({checked: []});
+        } else {
+            const newChecked = [...this.state.files];
+            this.setState({checked: newChecked});
+        }
+
+    }
+
+    onDownload = () => {
         this.state.service.getFiles(this.state.checked)
         .then(result => {
             const filename = `Logs-${new Date().toISOString()}.zip`;
@@ -47,11 +70,15 @@ export class Logs extends Component {
             document.body.appendChild(element);
             element.click();
             document.body.removeChild(element);
+            this.setState({checked: []});
+            this.setState({selectAllChecked: false});
         })
         .catch(ex => console.log(ex));
     }
 
     render() {
+        const { classes } = this.props;
+
         const Files = this.state.files.map((value) => {
             const labelId = `checkbox-list-label-${value}`;
     
@@ -72,16 +99,30 @@ export class Logs extends Component {
         })
 
         return (
-            <Paper>
-                <List >
-                    {Files}
-                </List>
-                <Button onClick={this.downloadChecked}>
-                    Download
-                </Button>
-            </Paper>
+            <Box className={classes.root}>
+                <Paper className={classes.paper}>
+                    <List className={classes.paper}>
+                        <ListItem key="Select-all" role={undefined} dense button onClick={this.handleSelectAllToggle}>
+                            <ListItemIcon>
+                            <Checkbox
+                                edge="start"
+                                checked={this.state.selectAllChecked}
+                                tabIndex={-1}
+                                disableRipple
+                                inputProps={{ 'aria-labelledby': "Select-all" }}
+                            />
+                            </ListItemIcon>
+                            <ListItemText id="checkbox-list-label-Select-all" primary={(this.state.selectAllChecked ? "Uns" : "S") + "elect all"} />
+                        </ListItem>
+                        {Files}
+                    </List>
+                    <Button onClick={this.onDownload}>
+                        Download
+                    </Button>
+                </Paper>
+            </Box>
         )
     }
 }
 
-export default Logs
+export default withStyles(styles)(Logs);
diff --git a/MQTTnet.TestApp.WinForm/Retained.json b/MQTTnet.TestApp.WinForm/Retained.json
index 25cf512..a7f52d8 100644
--- a/MQTTnet.TestApp.WinForm/Retained.json
+++ b/MQTTnet.TestApp.WinForm/Retained.json
@@ -1 +1 @@
-[{"Topic":"devices/output","Payload":"eyJ0YWciOiIxN2NmOGI4Mi1lZDQ4LTQ4MDctOTI3MS0xZDlmMGY5ZDViMWYiLCJwcm9iYWJpbGl0eSI6MC43MjA0MzAyMzAxMjU5ODUyfQ==","QualityOfServiceLevel":1,"Retain":true,"UserProperties":null,"ContentType":null,"ResponseTopic":null,"PayloadFormatIndicator":null,"MessageExpiryInterval":null,"TopicAlias":null,"CorrelationData":null,"SubscriptionIdentifiers":null}]
\ No newline at end of file
+[{"Topic":"devices/output","Payload":"eyJ0YWciOiJkNDhhODAwOC0wYjU2LTRkYzAtODYxMy0zMWY0MDY4OTk0ZDciLCJwcm9iYWJpbGl0eSI6MC4yNTMxNDI4NDgyNjMwOTU1fQ==","QualityOfServiceLevel":1,"Retain":true,"UserProperties":null,"ContentType":null,"ResponseTopic":null,"PayloadFormatIndicator":null,"MessageExpiryInterval":null,"TopicAlias":null,"CorrelationData":null,"SubscriptionIdentifiers":null}]
\ No newline at end of file