Hey there hugobertrand2,
How are you today?
It appears that you did nothing wrong since I’m having the same issue. The color of the widget title link is set to be white in theme style.css https://screencast.com/t/K4Y8b8RgKuu7. You can override it with some custom CSS. The easiest way to do that would be to add the code by using this plugin:
https://www.ads-software.com/plugins/simple-custom-css
Once the plugin is installed and activated you can add this code to Appearance >> Custom CSS:
.home-widget-title a {
color: #000 !important;
}
Replace the color hex value (#000 which is black) to the color of your choice. If this doesn’t work please post link to your site so I can take a look. Normally I wouldn’t suggest the use of the !important declaration. However, it can sometimes be a necessary evil when over-writing existing styles. You can find more info on the use of important declaration here:
https://developer.mozilla.org/en-US/docs/Web/CSS/Specificity#The_!important_exception
Hope this helps ??
Best regards,
Bojan