Donut Chart Generator

Create donut charts from labeled values with configurable center hole.

Donut Chart Generator converts labeled values into a ring-style chart that shows part-to-whole proportions while keeping a center area for totals or annotations. It is useful for executive summaries, dashboard callouts, and slide visuals where you want pie-style composition with a cleaner center focus. The tool accepts line-based input (`Label, Value`), computes percentages automatically, and lets you adjust hole size to fit your presentation style. Invalid rows are flagged and skipped to keep chart output reliable. Use it to communicate category composition in a compact, presentation-ready format.