Various examples are directed to systems and methods for interfacing a computing system to a human user. For example, a graphical user interface may be provided to a user. The graphical user interface comprises a holding shape and a first income source shape indicating a first income source. The holding shape comprises a filled portion having a first filled portion level indicating a first holding balance of an account of the user. A first deposit shape may be moved from the first income source shape towards the filled portion of the holding shape. The first deposit shape may indicate a first deposit to the account from the first income source. The filled portion may be resized to a second filled portion level indicating a second holding balance of the account after the first deposit.