Undecided

So I came on here to write a review for this app, and Ive been reading the other apps and its kind of disturbing. The app cant be given less than four stars or it blocks you from using it? Colors disappearing? I guess as long as I like the app my colors wont disappear so I like the app. Please add more colors.

Tammi70 about Adult Coloring Book - Coloring Book for Adults, v3.5