Settings

In General Tab You can change the logo,URL, site title, Favicon, theme color

Result:

In Editor tab You can change some settings on Customer end

In Shop tab You can do setting to comply with the currency rule in your country

In Google font tab You can set a number of font to show on Customer end

In Shopify tab

Language

To set up Language for both Customer end and Store Owner end, firstly, please click on Language on the left sidebar

Click on Add new language

Select a flag icon according to your language

Create translations

Search text function

Go back to Settings-> Language

After saving you will see a option for new languages appear here