Custom labels are the caption on buttons, bars, and headlines etc. These can all be customized and/or translated.
- Go to your Setup menu.
- Go to Build in the left menu.
- Click Create.
- Click Custom labels and find the ARPEDIO labels. These are all represented with "ARPEDIO" in the name.
- Select a label by clicking on a label name.
- Hit the button New Local Translations/Overrides.
- Select Language and write your Translation Text.
- Click Save.
Now, do this for all the custom labels you want translated and/or customized.
And that's about it.