We apologize for any frustration. We're here to help – could you share more about the issues you encountered through Happy Color's general settings, where you will find the "Contact us" option?
Thank you for your feedback! 😊 We appreciate your suggestions: 1) allowing long-press on numbers to fill a cell, and 2) keeping the color selection after finishing a number. We’ll pass these ideas to our team to improve the coloring experience. 🎨✨