Make icon of center item bigger than the rest

is there a way to make the center item icon bigger? regardless of its state ( picked or not).

Start by examining the library's navigation item and icon-sizing entry points to determine how the center item is identified. Check both picked and unpicked states, then define completion as the center icon rendering larger than the other icons in either state. No file or test is named in the issue, so the relevant implementation and verification path must be located first.

Written by the indexing model from the issue text.