The purpose of the ui/css/ui-custom.css file is to override default styles for responsive UI pages. This file allows customization of the visual appearance of IdentityIQ's user interface to ensure that it aligns with specific branding or user experience requirements. By using this file, organizations can implement changes to styles, such as colors, fonts, and layout adjustments, which directly affect how responsive UI elements are presented on various devices. This capability is crucial for maintaining a consistent look and feel that meets both functional and aesthetic needs.
The other options refer to different functionalities not relevant to the ui-custom.css file. For instance, the control of login page displays typically involves configuration settings separate from CSS customization. While encapsulating entitlements pertains to how access rights and permissions are managed, it does not involve style sheets. Additionally, managing application details refers more to backend configurations or data structures rather than the visual presentation controlled by CSS files.