feat(pygal): implement rug-basic (#5590)

## Implementation: `rug-basic` - python/pygal

Implements the **python/pygal** version of `rug-basic`.

**File:** `plots/rug-basic/implementations/python/pygal.py`

**Parent Issue:** #978

---
:robot: *[impl-generate
workflow](https://github.com/MarkusNeusinger/anyplot/actions/runs/25148765512)*

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Markus Neusinger <2921697+MarkusNeusinger@users.noreply.github.com>

Author: github-actions[bot]

plots/rug-basic/implementations/python/pygal.py

@@ -1,81 +1,93 @@
-""" pyplots.ai
+""" anyplot.ai
 rug-basic: Basic Rug Plot
-Library: pygal 3.1.0 | Python 3.13.11
-Quality: 85/100 | Created: 2025-12-23
+Library: pygal 3.1.0 | Python 3.13.13
+Quality: 81/100 | Updated: 2026-04-30
 """
 
+import os
+import sys
+
 import numpy as np
-import pygal
-from pygal.style import Style
 
 
-# Data - Response times (in milliseconds) showing realistic clustering patterns
+# Pop script directory so local pygal.py doesn't shadow the installed package
+_script_dir = sys.path.pop(0)
+import pygal  # noqa: E402
+from pygal.style import Style  # noqa: E402
+
+
+sys.path.insert(0, _script_dir)
+
+# Theme tokens
+THEME = os.getenv("ANYPLOT_THEME", "light")
+PAGE_BG = "#FAF8F1" if THEME == "light" else "#1A1A17"
+INK = "#1A1A17" if THEME == "light" else "#F0EFE8"
+INK_MUTED = "#6B6A63" if THEME == "light" else "#A8A79F"
+BRAND = "#009E73"  # Okabe-Ito position 1
+
+# Data - API response times (ms) with realistic multi-modal distribution
 np.random.seed(42)
 values = np.concatenate(
     [
-        np.random.normal(150, 20, 60),  # Main cluster of typical responses
-        np.random.normal(250, 30, 25),  # Slower responses
-        np.random.normal(400, 15, 10),  # Occasional outliers
-        np.random.uniform(50, 100, 5),  # Very fast responses
+        np.random.normal(150, 20, 60),  # Typical fast responses
+        np.random.normal(250, 30, 25),  # Medium responses
+        np.random.normal(400, 15, 10),  # Slow outlier cluster
+        np.random.uniform(50, 100, 5),  # Very fast cache hits
     ]
 )
-values = np.clip(values, 30, 500)  # Realistic bounds
-values = np.sort(values)  # Sort for better visual ordering
+values = np.clip(values, 30, 500)
+values = np.sort(values)
 
-# Custom style - keep text readable, minimize distracting elements
+# Style - single color so all rug ticks share brand green
 custom_style = Style(
-    background="white",
-    plot_background="white",
-    foreground="#333333",
-    foreground_strong="#333333",
-    foreground_subtle="#666666",
-    colors=("#306998",),  # Python Blue
-    title_font_size=72,
-    label_font_size=48,
-    major_label_font_size=42,
-    legend_font_size=42,
-    value_font_size=36,
-    opacity=0.85,
-    opacity_hover=1.0,
-    tooltip_font_size=36,
+    background=PAGE_BG,
+    plot_background=PAGE_BG,
+    foreground=INK,
+    foreground_strong=INK,
+    foreground_subtle=INK_MUTED,
+    colors=(BRAND,),  # All ticks cycle through brand green only
+    title_font_size=28,
+    label_font_size=22,
+    major_label_font_size=18,
+    legend_font_size=16,
+    value_font_size=14,
+    stroke_width=8,
+    opacity=0.7,
 )
 
-# Create XY chart for rug plot visualization
+# Plot - XY chart used as rug plot
 chart = pygal.XY(
     width=4800,
     height=2700,
     style=custom_style,
-    title="rug-basic · pygal · pyplots.ai",
+    title="rug-basic · pygal · anyplot.ai",
     x_title="Response Time (ms)",
     y_title=None,
     show_legend=False,
     show_dots=False,
     stroke=True,
-    stroke_style={"width": 10},
     show_x_guides=False,
     show_y_guides=False,
     show_y_labels=False,
     print_values=False,
     explicit_size=True,
-    margin=80,
-    margin_top=180,
-    margin_bottom=280,
-    margin_left=80,
-    margin_right=80,
-    tooltip_border_radius=10,
-    xrange=(30, 450),
-    range=(0, 1),
+    margin=100,
+    margin_top=220,
+    margin_bottom=300,
+    xrange=(30, 520),
+    range=(0, 0.2),
 )
 
-# Rug ticks - uniform height filling 90% of vertical canvas
-tick_bottom = 0.05
-tick_top = 0.95
+# Rug ticks - short vertical marks along the x-axis
+tick_bottom = 0.0
+tick_top = 0.15
 
-# Add rug ticks with interactive tooltips showing exact values
 for val in values:
-    x = float(val)
-    chart.add(f"{val:.1f} ms", [(x, tick_bottom), (x, tick_top)], stroke_style={"width": 10}, show_dots=False)
+    chart.add(
+        f"{val:.1f} ms", [(float(val), tick_bottom), (float(val), tick_top)], stroke_style={"width": 8}, show_dots=False
+    )
 
-# Save outputs - HTML preserves pygal's SVG interactivity with hover tooltips
-chart.render_to_png("plot.png")
-chart.render_to_file("plot.html")
+# Save
+chart.render_to_png(f"plot-{THEME}.png")
+with open(f"plot-{THEME}.html", "wb") as f:
+    f.write(chart.render())