If you want to customize and experience new stuff regarding lock screen,notifications and wamt to explore something new,then download an app name GOOD LOCK which is avillable on galaxy store. Have a look
After downloading Good lock app you have to download some more apps like this , in lock star you can customize lock screen settings
In rockstar you can customize the lock screen and notification icon and notification styles
In quickstar you can change the style and color of your notification bar,here you can select different colors and create your own too
Task changer is really impressive here you can change the animation style of recent apps tab and select different different styles. Here you can find more cool looks of recent apps tab
In navstar you can customize navigation buttons and you can add one or two more navigation button here you can change the navigation icons too
If you can't find the app then contact me or leave a comment
