Can grid lines be made thicker or darker?

[David3]

We are finding the grid lines to be rather faint. Is there any option for changing this?

[Heracles]

Here’s a proof of concept (far from perfect) but can be done with Stylish / Stylus / user CSS:

#hyperbaseContainer .cell {
    border-width: 3px !important;
    border-color: #000 !important;
}