Hello Raymond
You will need to use a custom draw event to color (or otherwise style) a certain cell. See my post here Custom cell-draw in lv_table V9 - #2 by Tinus (still works on 9.2) and one the examples in the documentation: Table (lv_table) — LVGL documentation with the blue cells on top. You can assign a custom cell control to a cell and check whether or not that cell has the control flag set to “select” specific cells to color.
It’s a bit complicated but I hope this helps.