one row has 2 states:

(1) the whole row is highlighted
(2) only the arrow is highlighted

but the problem is with the second point：when we want to highlight arrow，the whole row is still highlighted

我的任务

Figure out a way to handle both scenarios

boundary conditions & guidance

• it doesn’t mean that while highlighting the arrow, we cannot highlight the whole row as well…

• it means that currently it looks bad

• and it needs to be more visble