AI can generate a chart in seconds, but it has no single source of truth to work from. It invents its own colors, fonts, and sizes, so charts don't match each other or the brand.
I started by writing every visual decision into one token file. The AI's only job is to understand the data and describe the chart it calls for. The chart itself is drawn by code that can only use what is in that file. Charts adapt to their space instead of shrinking. Each one is automatically checked at small widths and fails if a label is cut or touches another element.
Every chart Vizzy makes is branded, responsive, consistent with the rest, and it still takes only one prompt. In other tools I had limited responsive control and had to rebrand each chart by hand.