Deployment Frequency Heatmap

import matplotlib.pyplot as plt
import numpy as np
from matplotlib.colors import LinearSegmentedColormap
from matplotlib.patches import FancyBboxPatch
import matplotlib.patheffects as pe

fig, ax = plt.subplots(figsize=(14, 8), facecolor='#ffffff')
ax.set_facecolor('#ffffff')

np.random.seed(42)
teams = ['Platform', 'Frontend', 'Backend', 'Mobile', 'Data', 'DevOps']
weeks = [f'W{i+1}' for i in range(12)]
deployments = np.random.poisson(5, (len(teams), len(weeks)))

# Blue-cyan modern gradient
colors = ['#1e293b', '#0c4a6e', '#0891b2', '#22d3ee', '#a5f3fc']
cmap = LinearSegmentedColormap.from_list('modern_blue', colors, N=256)

cell_width = 0.88
cell_height = 0.82
for i in range(len(teams)):
    for j in range(len(weeks)):
        val = deployments[i, j]
        color = cmap(val / deployments.max())
        rect = FancyBboxPatch((j - cell_width/2, i - cell_height/2), 
                               cell_width, cell_height,
                               boxstyle="round,pad=0.02,rounding_size=0.12",
                               facecolor=color, edgecolor='#e2e8f0', linewidth=1.5)
        ax.add_patch(rect)
        # Add value text
        ax.text(j, i, str(val), ha='center', va='center', 
                color='#1e293b' if val > 5 else '#94a3b8', fontsize=10, fontweight='bold')

ax.set_xlim(-0.5, len(weeks) - 0.5)
ax.set_ylim(-0.5, len(teams) - 0.5)
ax.set_aspect('equal')
ax.invert_yaxis()

ax.set_xticks(range(len(weeks)))
ax.set_yticks(range(len(teams)))
ax.set_xticklabels(weeks, color='#64748b', fontsize=10, fontweight='500')
ax.set_yticklabels(teams, color='#1e293b', fontsize=11, fontweight='500')

sm = plt.cm.ScalarMappable(cmap=cmap, norm=plt.Normalize(vmin=0, vmax=deployments.max()))
cbar = plt.colorbar(sm, ax=ax, shrink=0.8, aspect=30, pad=0.02)
cbar.set_label('Deployments', color='#1e293b', fontsize=11, fontweight='500')
cbar.ax.yaxis.set_tick_params(color='#64748b')
plt.setp(plt.getp(cbar.ax.axes, 'yticklabels'), color='#64748b')
cbar.outline.set_edgecolor('#e2e8f0')

for spine in ax.spines.values():
    spine.set_visible(False)

ax.set_title('Weekly Deployment Frequency', fontsize=18, color='#1e293b', fontweight='bold', pad=20)
ax.tick_params(length=0)

plt.tight_layout()
plt.show()