👉 The phrase "lines fluid" describes a visual or movement quality where lines appear smooth, uninterrupted, and seamless, almost as if they flow together without any visible breaks or abrupt changes. This can be seen in various contexts, such as the movement of characters in a painting, the flow of text on a page, or even the natural contours of the human body. When something is described as having fluid lines, it suggests a sense of grace and continuity, evoking a feeling of elegance and effortless movement.