Which of the following are the built-in themes offered by Zabbix?

The built-in themes offered by Zabbix are designed to enhance user experience by providing various visual styles for the user interface, accommodating different user preferences and environments. The correct choice highlights themes such as Blue, Dark, High contrast light, and High contrast dark.

These themes are particularly useful in situations where users may prefer a brighter interface with high visibility, or darker themes that reduce eye strain in low-light conditions. High contrast light and High contrast dark are specifically tailored for accessibility, ensuring that users with visual impairments can interact comfortably with the interface.

The other options do not accurately represent the themes available in Zabbix. While they may include colors and styles that seem plausible, they do not correspond with the officially provided themes within the application. This distinction is important for users to ensure they are utilizing the correct features available to them in Zabbix for optimal usability.