Rose Butterfly Color by Number presents a specialized digital coloring experience focused on romantic and gothic aesthetic themes. Developed by BrainArt Studio, this Android application occupies a niche segment within the coloring app market by combining traditional paint-by-number mechanics with elaborate fantasy and floral artwork. The app distinguishes itself through thematic coherence, offering users a curated collection rather than generic coloring templates. The application's core functionality revolves around its extensive gallery of detailed illustrations, including roses, butterflies, dreamcatchers, and fantasy scenes. Each artwork utilizes a sophisticated color-matching system where numbered sections correspond to specific colors from a predefined palette. The interface provides zoom capabilities for intricate details, color picker tools with hexadecimal accuracy, and progress saving across multiple sessions. Notably, the app employs a gradual content expansion model where new designs are regularly added to maintain user engagement. User experience demonstrates thoughtful design considerations with intuitive navigation and minimal learning curve. The interface employs a dark theme that reduces eye strain during extended coloring sessions while making colors appear more vibrant. Real-world usage patterns show peak engagement during evening hours, suggesting the app serves as a relaxation tool. Performance analysis indicates smooth rendering even on mid-range Android devices, though larger canvases may experience slight lag on older hardware. With no user reviews available at publication, the application's reception remains undocumented. This absence of user feedback presents both opportunity and uncertainty—while indicating a relatively new market presence, it also prevents assessment of real-world satisfaction levels or technical issues encountered by actual users. The application demonstrates strengths in artistic quality and thematic consistency, providing genuine value for users seeking structured creative expression. Limitations include potential repetitiveness of the color-by-number format and dependence on developer content updates. Ideal use cases involve stress relief through meditative coloring activities and developing color theory understanding through guided artistic exercises.