When viewing a WikiSpecies page with many displayed links (e. g., https://species.wikimedia.org/wiki/Cymindidina), clicking an unopened (light-colored) link opens it to a new page and turns the link color to a dark blue. This display is controlled by the choice "Never" on the Firefox "Settings/Colors" page. The colors of links seem predetermined by "Never", which also enables unused links to be shown red. Is there any way to change the clicked-on link color from a fairly dark blue to a darker one, while still showing unused, empty links as red? My eyesight is not the best, and a darker blue "Never", if possible, would help me be sure I had visited a page.