Fix unreadable text on findbar w/ dark themes (#383, #37)
Fix unreadable text on findbar w/ dark themes (#383, #37)

lbrfabio/firefox-gnome-flat,lbrfabio/firefox-gnome-flat,lbrfabio/firefox-gnome-flat,lbrfabio/firefox-gnome-flat,gnome-integration-team/firefox-gnome,gnome-integration-team/firefox-gnome,gnome-integration-team/firefox-gnome,gnome-integration-team/firefox-gnome