For the upcoming Discover redesign, this issue is here to identify dependencies on EUI, it's currently being updated, so it will grow a bit. This is mostly about tasks targeting EuiDataGrid, here's a figma screenshot how it should look like:

• [EuiDataGrid] Add renderCustomToolbar render prop #7147
• [EuiDataGrid] Redesign grid header #7137
• [EuiDataGrid] Add column highlighting #7138
• [EuiDataGrid] Implement draggable columns with table headers #7136
• [EuiIcon] Add grabbable icon #7141
• [EuiIcon] Add icons to toggle panels visibility #7162