5.5 Iconography design / illustration style

I’m working on a project about [describe your domain/product/idea]. I want to define iconography and illustration style. Can you help me with: 1. Suggesting possible icon styles (outline, filled, geometric, playful). 2. Recommending illustration approaches (flat, 3D, minimal, abstract). 3. Highlighting consistency rules for stroke, size, and color. 4. Showing how to align visual assets with the brand personality. Format output as style guidelines for icons/illustrations.