style: 升级星标图表渲染引擎，适配暗黑模式可视化

.github/workflows/star_history.yml

@@ -2,8 +2,8 @@ name: Generate Star History
 
 on:
   schedule:
-    - cron: '0 0 * * *' # 每天 UTC 零点自动触发执行
-  workflow_dispatch: # 允许您在 GitHub 网页上手动点击运行
+    - cron: '0 0 * * *' 
+  workflow_dispatch: 
 
 permissions:
   contents: write
@@ -19,12 +19,10 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          echo "🚀 初始化 Python 虚拟环境与画图引擎..."
           python3 -m venv venv
           source venv/bin/activate
           pip install matplotlib requests
           
-          echo "📊 正在从 GitHub 官方接口拉取星标数据并渲染 SVG..."
           python3 - <<'PYEOF'
           import requests, os
           import matplotlib.pyplot as plt
@@ -40,7 +38,6 @@ jobs:
           while url:
               r = requests.get(url, headers=headers)
               if r.status_code != 200:
-                  print(f"API Error: {r.status_code} - {r.text}")
                   break
               data = r.json()
               if not data:
@@ -53,25 +50,47 @@ jobs:
           if dates:
               dates.sort()
               counts = list(range(1, len(dates) + 1))
-              # 延长折线到当前时间
               dates.append(datetime.utcnow())
               counts.append(counts[-1])
               
-              plt.figure(figsize=(10, 5))
-              plt.plot(dates, counts, color='#2ea44f', linewidth=2)
-              plt.fill_between(dates, counts, color='#2ea44f', alpha=0.1)
-              plt.title(f'{repo} Star History', fontsize=16)
-              plt.ylabel('Stars', fontsize=12)
-              plt.grid(True, linestyle='--', alpha=0.6)
+              # ==========================================
+              # [视觉升级] 注入 GitHub 官方暗黑模式 UI 规范
+              # ==========================================
+              bg_color = '#0d1117'      # GitHub 暗黑底色
+              text_color = '#c9d1d9'    # GitHub 亮灰字体
+              grid_color = '#30363d'    # GitHub 边框网格色
+              line_color = '#2ea44f'    # GitHub 经典成功绿
+              
+              fig, ax = plt.subplots(figsize=(10, 5), facecolor=bg_color)
+              ax.set_facecolor(bg_color)
+              
+              # 设置字体颜色与坐标轴颜色
+              ax.tick_params(colors=text_color)
+              ax.xaxis.label.set_color(text_color)
+              ax.yaxis.label.set_color(text_color)
+              ax.title.set_color(text_color)
+              
+              # 设置边框颜色
+              for spine in ax.spines.values():
+                  spine.set_edgecolor(grid_color)
+                  
+              # 绘制核心趋势线与阴影填充
+              plt.plot(dates, counts, color=line_color, linewidth=2)
+              plt.fill_between(dates, counts, color=line_color, alpha=0.1)
+              
+              plt.title(f'{repo} Star History', fontsize=16, color=text_color, pad=15)
+              plt.ylabel('Stars', fontsize=12, color=text_color)
+              
+              # 设置网格虚线
+              plt.grid(True, linestyle='--', alpha=0.5, color=grid_color)
               plt.gca().xaxis.set_major_formatter(mdates.DateFormatter('%Y-%m-%d'))
               plt.gcf().autofmt_xdate()
               plt.tight_layout()
               
               os.makedirs('data', exist_ok=True)
-              plt.savefig('data/star_history.svg', format='svg', transparent=True)
-              print("✅ [Success] 原生 SVG 图表渲染完毕！")
-          else:
-              print("⚠️ [Warning] 暂无 Star 数据或获取失败。")
+              # 强制应用背景色，关闭透明度，打破隐形诅咒
+              plt.savefig('data/star_history.svg', format='svg', facecolor=bg_color, transparent=False)
+              print("✅ [Success] 极客暗黑风 SVG 渲染完毕！")
           PYEOF
 
       - name: Commit & Push Changes
@@ -79,5 +98,5 @@ jobs:
           git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
           git config --local user.name "github-actions[bot]"
           git add data/star_history.svg
-          git commit -m "chore: 部署纯本地 Python 渲染引擎，彻底摆脱 502 梦魇" || exit 0
+          git commit -m "style: 修复暗黑模式下坐标轴隐形问题，采用 GitHub 原生深色主题渲染图表" || exit 0
           git push origin main