On the Lesson Practice page which precedes every practice session, the only button on the page, the [Practice] button, is colored blue. This means it must be clicked on with the mouse rather than being activated by typing a . Please change it to green so I can get past it without fumbling around with the mouse.

Or get rid of the Lesson Practice page altogether. It has to be the page I have most often visited while using Duolingo and it has not contributed anything to my language education.