Build Apps with Google AI Studio: My On-Demand Coloring Book Generator



This content originally appeared on DEV Community and was authored by gomathi

This post is my submission for DEV Education Track: Build Apps with Google AI Studio.

What I Built

I created an On-Demand AI Coloring Book Creator — an app that generates unique, printable coloring book pages instantly based on any theme the user enters. I used Gemini to generate short, engaging captions for each page, and Imagen to produce black-and-white line art suitable for coloring. My key prompt was:

“Please create an app that generates unique, printable coloring book pages on demand. The app should allow users to enter a theme or keyword (e.g., dinosaurs, space fairies, underwater cats), generate a short caption using Gemini, and create black-and-white line art with Imagen suitable for coloring books.”

The app also features a simple, user-friendly interface that encourages creativity.

Demo

https://github.com/Gomathikrishna/AI-Coloring-Book-Creator

Image description

My Experience

Building this app was a fantastic way to explore how generative AI can bring creativity tools to anyone, even without design skills. I learned how to combine Gemini’s text generation and Imagen’s image creation seamlessly in a single workflow, all within Google AI Studio’s intuitive interface.

What surprised me most was how consistently unique and delightful the outputs were — even with repeated prompts on the same theme. It was also eye-opening to see how quickly an interactive and visually engaging app could come together with just the right prompt engineering.


This content originally appeared on DEV Community and was authored by gomathi