Styling Selections

Control how selected rows and cells appear.

When row selection is enabled, --ag-selected-row-background-color allows to set the color of selected rows. If
your grid uses alternating row colors, we recommend setting this to a semi-transparent color so that the alternating row
colors are visible below it.

.ag-theme-alpine {
    /* bright green, 10% opacity */
    --ag-selected-row-background-color: rgb(0, 255, 0, 0.1);