Missing documentation about ui.

I have some troubles with the icons, maybe some missing ttf(or other as such) packages. See image below (lower right side of the picture).
I could not find anything in the provided documentation about ui related dependencies (other than nui.nvim).
Can you provide more information about other configuration/plugins/icons that may impact this plugin?


Review the existing documentation and the attached screenshot, starting with the current notes about nui.nvim and icon rendering. Identify which UI-related dependencies, configurations, or plugins affect the reported icons, then document that information and verify that the resulting guidance addresses the screenshot's issue.

Written by the indexing model from the issue text.