Sign in to your Gmail account.
Click on "Settings" at the top right of the web page.
One can change the setup of their Gmail Outlook account by going to the gear icon and then select settings. Once in settings one can change their setup of their Gmail Outlook account.
You must not change the chat settings on school Gmail. Moreover the official email of school is protected by Passwords. You need to find the password first to edit them.
Black is one of the theme of Gmail inbuilt. You can change your Gmail to black anytime you want. In the settings, there is themes where you can select it.
You can easily change your password on Gmail. The password is like the key to Gmail account. You can change it in the settings.
You can change color of text in gmail. Go to settings in the upper right corner. Select Labs and select Default Color styling to change color.
Gtalk settings are inside the Gmail settings. Gtalk is a part of Gmail so their settings are together. You can find it's settings when you go to account settings.
You can get rid of your Gmail by deleting it. After deleting you won't have any mail left in your mailbox. Settings in a Gmail account are the ones where the delete option is.
You cant change it. You'll have to create a new account
The language of Gmail can be changed easily. The language for all google products can be edited in a single place. It can be done on Google Language settings page.
You can change back to the old Email easily. The old email was the basic HTML one. You can configure it in the settings.
Click on the gear sign in the top right corner. Then click on Mail Settings, and then Themes.
You can download an app on the app store or go on Safari and search "gmail" and it should come up.