I am using elementary OS version 0.3.2 and it works just fine. I tried elementary OS version 0.4 and the text on everything is too light. Both of these have been used on a desktop computer. Is there a way to make the text darker on version 0.4?
The method that Daniel would prefer is to use dconf-editor. Once installed (from the AppCenter), Ctrl-f and search for color, keep hitting 'next' until you find the one that applies to font color.
Install the Elementary Tweaks: https://www.reddit.com/r/elementaryos/comments/4p3yei/elementary_tweaks_on_loki/
There you can easily change the system fonts.