Chart Prompts

Restyle my chart in the "Ink Swatches" style described below. Keep my data, chart type, title meaning and units; change only the presentation. Use the charting library this project already uses (plain SVG if there is none). If the library can't express a detail, draw it in a custom layer instead of dropping it. Measurements assume a 960 x 600 chart; scale them proportionally.

Mood: a fountain pen enthusiast's ink test laid out on a slate-blue desk. Elegant and a little collectible: glossy ink colors with sheen, pooled dots and hand-swabbed swatch cards.

Colors (use these exact values):
- Desk: #1B2230 with a very faint cool noise grain (about 5% alpha).
- Inks in series order, each with a sheen color: oxblood #C0465A (sheen #E7B35A), violet-black #9A86D8 (sheen #D8C9FF), sepia #C0925E (sheen #E9C99A), teal #2E9E8F (sheen #E05C8C), turquoise #5FC9E6 (sheen #F08A6A).
- Primary text #E9E4DA. Secondary text #98A2B6. Gridlines #2C3547, baseline #4A5468. Swatch cards #EEE7D8 with #2A2A33 names.

Typography (Google Fonts):
- Instrument Serif italic for the title (40px, stating the finding) and the ink names on the swatch cards (19px).
- Hanken Grotesk for everything else: subtitle 16px, axis numbers and ticks 13px, end values 14px 600 in the ink color, source 12px.

Layout:
- Title top left at x 64; directly beneath it a nib-stroke underline: a filled tapered shape about 450px long in the first ink color, 0 at both ends and swelling to about 5px, like a flex nib stroke.
- Subtitle below the underline, plot on the left (x 104 to 700), and the legend as a column of five swatch cards on the right (x 780, 140 x 76, 12px apart, each rotated between -1.5 and 1.4 degrees, 2px radius, soft 4px shadow).
- Each card holds a ragged swab: a 108 x 30 blob with jagged top and bottom edges filled with the ink at 90% opacity, a short curved sheen stroke (2.4px) at its right end, and the ink name underneath.
- Cards are stacked in the same order the lines end, top to bottom, which doubles as secondary encoding.

Axes and grid:
- Horizontal gridlines only (1px #2C3547) at round values, the top one carrying the unit ("30 s"); 5px ticks under the baseline at each x value, and an axis title right-aligned under the x labels.

Marks:
- Line chart: smooth monotone curves, 3.2px ink stroke with round caps; beneath each, a 3px sheen-color copy at 70% opacity offset 0.6px right and 1.6px up so a thin sheen edge shows on top. At each data point an ink-pooling dot: a 5 to 6px ellipse of the ink plus a radial gradient overlay that darkens toward the rim (0% at center, 12% at 70%, 38% black at the edge). The last value labeled 12px past the end in the ink color.
- Bar chart: square-based bars in the ink colors with 2px rounded tops, a 2px sheen-color strip along each bar's left edge, and a pooled darker band (radial gradient) at the bar top; values above in the ink color.

Avoid: neon or pure saturated primaries, white backgrounds, a boxed legend, heavy gridlines, and more than one serif.

When you're done, render the chart and check that the sheen edge reads as a thin highlight rather than a second line, the swatch card order matches the line end order, and end labels don't collide.