Hi @Allybaba, welcome to our forum!
If you want to change the theme in your Xperia E5, press and hold on an empty area on the home screen and then tap on "Themes" and choose the one you would like to try! 
I hope that helps!
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1869354posts
Hi @Allybaba, welcome to our forum!
If you want to change the theme in your Xperia E5, press and hold on an empty area on the home screen and then tap on "Themes" and choose the one you would like to try!
I hope that helps!