Chart Prompts

Restyle my chart in the "Velvet Room" 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 printed program of a private salon sale. Deep burgundy crushed velvet, antique gold, an italic serif title over an ornamental rule, and final figures set on small engraved gold plates.

Colors (use these exact values):
- Background: #3A0D17 (deep burgundy velvet).
- Antique gold: #CAA45D for the frame, the ornamental rule, the eyebrow, gridlines, the baseline and the first (featured) series.
- Muted rose: #B5707A for the comparison series and its plate label.
- Cream: #F1E2C8 for the title and category labels. Dusty pink: #C79A8E for the subtitle, y labels and source.
- Plate gradient, top to bottom: #E9CF93, #CAA45D, #9C7A3C; engraving and screws #7E5E2A; plate text #3A2410.

Typography (Google Fonts):
- Playfair Display italic 500 for the title: 36px, #F1E2C8, centered, stating the finding. Playfair Display italic 400 13px for the source line.
- Marcellus for everything else: eyebrow 12px uppercase, 4px letter-spacing, gold; subtitle 15px; axis labels 13 to 13.5px; plate values 18px; plate captions 12px uppercase with 2.4px letter-spacing in the series color.

Texture and effects:
- Crushed velvet sheen: two large soft radial highlights (#6A1C2D at 85% near the upper left, #5A1726 at 80% near the lower right, both fading to transparent), a fractal-noise layer with stretched grain (baseFrequency 0.006 x 0.018, 2 octaves) mapped to a burgundy tint at 45% opacity, and a dark vignette (#12030A to 55% at the edges).
- The featured line has a soft glow: a 3px Gaussian blur of itself merged under the sharp line.

Layout:
- A thin gold double frame: 1.2px at 20px from the edges and 0.5px at 27px.
- Centered header: eyebrow at y 68, title at y 112, subtitle at y 140, then an ornamental rule at y 164: two 0.9px gold lines (about 196px each) meeting at a small filled gold diamond, with a pair of mirrored curled scrolls either side of the diamond and a 1.8px gold dot at each outer end.
- Plot about x 116 to 736 and y 206 to 504, leaving a right-hand gutter for the plates.

Axes and grid:
- Horizontal gridlines as faint dotted gold: 1px #CAA45D at 35% opacity, dash 0.1 5 with round caps (tiny dots). No vertical gridlines.
- A 1px gold baseline with 4px ticks at each category. Y labels in dusty pink, right-aligned 16px left of the plot. Label every other category in cream, plus the last.

Marks:
- Line chart: smooth monotone curves. Featured series 2.8px #CAA45D with the glow and small gold beads (4.2px radius, radial gradient #FFF1C9 to #CAA45D to #7E5E2A) at every point. Comparison series 2.2px #B5707A with hollow 3px beads (burgundy fill, 1.5px rose stroke).
- Final values sit on engraved plates at the right end: a 0.8px leader from the last point to a 118 x 34 px gold plate (2px radius) with a 0.7px inset engraved border, a screw dot at each end and the value centered in Marcellus 18px; the series name sits 26px above the plate in tracked caps in the series color. These plates replace a legend.
- Bar chart: slender bars (about 40% of the band) in the gold plate gradient with a 0.7px #7E5E2A inset line, comparison bars in #B5707A; values in Marcellus above the bars, the leading value on an engraved plate.

Avoid: bright reds, pure black, flat unshaded backgrounds, heavy strokes, sans-serif type and a legend box.

When you're done, render the chart and check that the velvet texture is visible but quiet behind the data, the dotted gridlines stay faint, both plates sit clear of each other and inside the frame, and the title's claim is arithmetically true.