Chart Prompts

Restyle my chart in the "Intaglio" 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: the reverse of an engraved banknote seen under low light. A violet-black field covered in hair-fine engraving, one silver line, crosshatching that thickens toward the data, microtext rules and an oval guilloche cartouche around the title. Precise, historical, a little solemn.

Colors (use these exact values):
- Ground: #150F1F, with a radial lift to #1E1630 in the upper middle.
- Silver for the data line, the title, markers and annotations: #D9DCE5.
- Pale lilac for the eyebrow, subtitle, axis labels, microtext, frame and cartouche rings: #B8AAD8.
- Engraving violet for the background line field: #6F6296 at 22% opacity.
- Cartouche fill: #2A2140 at 60% opacity.

Typography (Google Fonts):
- Cinzel 700 for the title: 32px, 2px letter-spacing, silver, a short capitalized finding ("Fixed for 64 Years") set inside the cartouche. Cinzel 700 18px for the end value label; Cinzel 400 10px with 3px letter-spacing for a small "SPECIMEN · REVERSE" imprint at the lower left.
- Cormorant for everything else, keeping its old-style figures: eyebrow 12px 600 uppercase with 3.5px letter-spacing in lilac inside the cartouche above the title; subtitle 19px italic 500 in lilac spelling out the finding with numbers; measure line 14.5px 500 in lilac at 80% opacity; axis labels 15px 600 lilac; annotations 15 to 16px italic 600 in silver; source 13px italic.

Layout:
- A double hairline frame: 0.8px lilac at 55% opacity inset 16px, and 0.4px at 40% inset 21px.
- The cartouche is centered at the top (center y 84): a ground-colored ellipse (rx 262, ry 60), a woven guilloche oval of five phase-shifted rings (0.5px lilac at 85%, base radius 60 stretched 4.3x horizontally and 0.92x vertically, 64 lobes of amplitude 3.2), then an inner ellipse (rx 238, ry 47) with the cartouche fill and a 0.8px lilac outline holding the eyebrow and title.
- Subtitle at y 172 and measure line at y 194, centered below the cartouche. Plot from x 96 to 880, y 214 to 494. Source bottom right, imprint bottom left, both at y 566.

Axes and grid:
- Gridlines are microtext rules: the currency name repeated ("ALDMARK CROWN · ALDMARK CROWN · ...") in Cormorant 600 at 5.2px, lilac at 55%, justified to the full plot width at each gridline value. No solid gridlines.
- Y labels right-aligned 12px left of the plot; a 0.9px lilac baseline with 5px ticks and year labels 24px below it.

Marks:
- Line chart: a 2.2px silver line with straight segments and round joins, over a 4px silver copy at 35% opacity blurred by 3px for a faint sheen. The area beneath is engraved in three layers clipped to the area: vertical hairlines (0.55px every 5px) at 30% opacity across the whole area; +45 degree lines (0.6px every 4px) at 40% within 70px below the line; and -45 degree lines (0.65px every 3px) at 55% within 26px below the line, so the crosshatch grows denser toward the line. End point: a silver dot r 4.5 with its value in Cinzel on a small ground-colored plate so the microtext does not run through it. Annotate key regimes directly in italic silver.
- Bar chart: bars with no solid fill, engraved instead: a 1px silver outline, vertical hairlines inside at 30%, plus the -45 degree dense hatch in the top 26px of each bar, so each bar looks darker at its top edge. Bars 60% of the band width, square corners, value labels in Cinzel 700 above.

Texture:
- Engraved ground: concentric ellipses every 7px radiating from the lower right (center near 820, 470, stretched 1.25x horizontally), each with a tiny 1.6px sine ripple of 36 lobes, 0.45px in engraving violet at 22% opacity, covering the whole canvas behind the chart.

Avoid: bright colors, gold, solid area fills, sans-serif type, heavy gridlines, glow stronger than a sheen, and letting microtext run through any label.

When you're done, render the chart and check that the crosshatch visibly darkens toward the line, the microtext reads as a fine dotted rule at thumbnail size, the cartouche rings do not touch the title, and the subtitle's numbers match the data.