Merge branch 'main' into implementation/stem-basic/seaborn

Author: MarkusNeusinger

plots/stem-basic/implementations/python/matplotlib.py

@@ -1,33 +1,47 @@
-""" pyplots.ai
+""" anyplot.ai
 stem-basic: Basic Stem Plot
-Library: matplotlib 3.10.8 | Python 3.13.11
-Quality: 94/100 | Created: 2025-12-23
+Library: matplotlib 3.10.9 | Python 3.13.13
+Quality: 91/100 | Updated: 2026-04-30
 """
 
+import os
+
 import matplotlib.pyplot as plt
 import numpy as np
 
 
-# Data - Discrete signal samples (simulating a damped oscillation)
+# Theme tokens
+THEME = os.getenv("ANYPLOT_THEME", "light")
+PAGE_BG = "#FAF8F1" if THEME == "light" else "#1A1A17"
+INK = "#1A1A17" if THEME == "light" else "#F0EFE8"
+INK_SOFT = "#4A4A44" if THEME == "light" else "#B8B7B0"
+BRAND = "#009E73"
+
+# Data - discrete damped oscillation signal
 np.random.seed(42)
 x = np.arange(0, 30)
 y = np.exp(-x / 10) * np.cos(x * 0.8) + np.random.randn(30) * 0.05
 
-# Create plot (4800x2700 px)
-fig, ax = plt.subplots(figsize=(16, 9))
+# Plot
+fig, ax = plt.subplots(figsize=(16, 9), facecolor=PAGE_BG)
+ax.set_facecolor(PAGE_BG)
 
-# Stem plot with custom styling
-markerline, stemlines, baseline = ax.stem(x, y, basefmt="k-")
-plt.setp(stemlines, linewidth=2, color="#306998", alpha=0.8)
-plt.setp(markerline, markersize=12, color="#306998", markeredgecolor="white", markeredgewidth=2)
-plt.setp(baseline, linewidth=2, color="#333333")
+markerline, stemlines, baseline = ax.stem(x, y, basefmt="-")
+plt.setp(stemlines, linewidth=2, color=BRAND, alpha=0.8)
+plt.setp(markerline, markersize=12, color=BRAND, markeredgecolor=PAGE_BG, markeredgewidth=2)
+plt.setp(baseline, linewidth=1.5, color=INK_SOFT)
 
-# Labels and styling (scaled font sizes for 4800x2700)
-ax.set_xlabel("Sample Index", fontsize=20)
-ax.set_ylabel("Amplitude", fontsize=20)
-ax.set_title("stem-basic · matplotlib · pyplots.ai", fontsize=24)
-ax.tick_params(axis="both", labelsize=16)
-ax.grid(True, alpha=0.3, linestyle="--")
+# Style
+ax.set_xlabel("Sample Index (n)", fontsize=20, color=INK)
+ax.set_ylabel("Amplitude (V)", fontsize=20, color=INK)
+ax.set_title("stem-basic · matplotlib · anyplot.ai", fontsize=24, fontweight="medium", color=INK)
+ax.tick_params(axis="both", labelsize=16, colors=INK_SOFT)
+ax.spines["top"].set_visible(False)
+ax.spines["right"].set_visible(False)
+for s in ("left", "bottom"):
+    ax.spines[s].set_color(INK_SOFT)
+ax.yaxis.grid(True, alpha=0.12, linewidth=0.8, color=INK)
 
+# Save
 plt.tight_layout()
-plt.savefig("plot.png", dpi=300, bbox_inches="tight")
+plt.savefig(f"plot-{THEME}.png", dpi=300, bbox_inches="tight", facecolor=PAGE_BG)