On Sidebar > Accounts > Profile is where you set your profile details.
Once you register on MyDev.com, your Full Name and Email Address are required.
Here, is where you can edit the information you already set up for your account and add new ones including Country, Timezone, Username, Gender, and Language.
By changing the language, you’re changing all settings and menus in the language you want, so that way your entire system will be in your preferred language.