Change select line color

[SamuelNicaise]

When selecting something in a table, the deep blue color makes the text difficult to read.

This has led to behaviors such as selecting the line below the variant that biologists are trying to read, with obvious risks of modifying the wrong variant.

Suggested fix: change the selection color, or replace it with a colored frame, or anything else to make the selected line stand out while still being easy to read.