Player's Handbook, Chapter 4: Personality and Background, Customizing a Background: "...To customize a background, you can ... choose a total of two tool proficiencies or languages from the sample backgrounds."
For example: if the background has one language and one tool, you cannot switch to two tools or two languages.
Player's Handbook, Chapter 4: Personality and Background, Customizing a Background: "...To customize a background, you can ... choose a total of two tool proficiencies or languages from the sample backgrounds."
For example: if the background has one language and one tool, you cannot switch to two tools or two languages.
Customizing a Background is implemented now.