Vtable 2.0.7

Combo charts now support any number of vertically merged bar/line segments sharing one y-range (axis names taken from the leftmost segment); chart templates ship with sample content; chart tables get a one-click “convert to chart” button at the bottom-right corner — plus calmer chart colors, per-toggle display handles (fill handle / drag handles / image resize), and a batch of rendering fixes (line-chart fill artifacts, drag-handle layering & viewport bounds, English template parsing, fill handle not appearing on entering a table).