Martino Ferrari
1d5b286611
- Axis badges: the y value in the y label strip and the x time in the x strip, each a full-opacity panel in the crosshair's colour, **centred on the line it names**. The tick text is flushed before the fill -- the over-text batch is flushed after every line batch, so without that flush the label behind printed through the panel (the "transparent backplate" defect). - Cursor labels: collected across the cursor loop and clustered at its end, so two marks in one column share a panel with one line each instead of overprinting, and a label stays on its own mark's row. - Figure: a split row's cells share one y (`set_share_row_y`), so the horizontal line is drawn in every cell of the hovered row -- one value, one scale, spanning the row -- and still in no other row. Tests: `figure_crosshair_horizontal_spans_a_split_rows_cells`, plus the render-smoke additions for the badge placement/flush and the clustered labels.