Best open-source visuals tools in 2025

🎨 Art for developers 🎨 Art for github 🎨 Art for marketers 🎨 Art for showcasing 🎨 Art for tech events 🎨 Artwork accessibility 🎨 Github branding 🎨 Github profile images 🎨 Github visuals 🎨 Project milestone celebration 🎨 Tech event attraction 🎨 Unique github art 🎨 Visual promotion