Brazil Unveils Drex, the Official Brand for its Central Bank Digital Currency

The color transition from blue to light green reflects a "transaction completed" message. Concerns were raised when blockchain developer Pedro Magalhães discovered code functions in Drex that could potentially allow a central authority to freeze funds or adjust balances.

Last year, economist Fabio Araujo from the Brazilian central bank suggested that the CBDC could prevent bank runs in the country. In a similar vein, the Central Bank of Russia revealed the visual identity of its CBDC, the digital ruble, depicting an international ruble symbol enclosed within a circle, available in red and white or black and white color combinations, according to Cointelegraph.