Android Question Sd Flexgrid search

[Enthousiastic]

Hello , taking as example the tutorial [B4X] [XUI] SD FlexGrid (Table) ( https://www.b4x.com/android/forum/threads/b4x-xui-sd-flexgrid-table.100897/#content ) , how can I make similar result like B4xTable searching a cell the letters changing in red ( like attached picture ).
Can you give a sample of code or a link please ?
Many thanks in advanced
Enthousiastic