What lectern can chart. lectern 能画什么图。

Nine boardroom visuals in one register — light paper, a single-hue navy ramp, hairline rules and labelled status pills. Every bar length and every arc is proportional to its number; the colour never carries data the size doesn't. 九张会议室图表，一个语域 —— 浅底纸白、单色相深蓝梯度、发丝线、带标签的状态药丸。每根柱长、每段弧都与数字成比例；颜色绝不承载尺寸没说的数据。