icon set, noun project, flat design, vector graphics, thematic symbols, minimalist style, scalable icons, user interface elements, monochrome palette, consistent line weight, grid-based layout, pixel-perfect precision, commonly used icons, social media, technology, communication, business, environment, education, healthcare, transportation, weather, food and drink, leisure, sports, animals, buildings, landmarks, nature scenes, detailed textures, high contrast, simple shapes, clear visual language, easy to recognize, wide application, digital design, professional use, creative commons license.