<｜begin▁of▁sentence｜>### Instruction:
As an urban planner, you are tasked with creating a detailed plan for a new residential development. The plan includes the layout of a tree-lined network of streets and associated public spaces for a community of 15 homes. To visualize this plan, you need to develop a custom drawing tool using a specific software called igraph's AbstractCairoVertexDrawer. This tool will enable you to represent each home as a vertex in the network, with precise color coding, positioning, and bounding boxes to accurately depict the graph structure.
### Response:
from igraph import Graph, BoundingBox
from igraph.drawing import Plot
from igraph.drawing.vertex import AbstractCairoVertexDrawer

class CustomVertexDrawer(AbstractCairoVertexDrawer):
    def __init__(self, context, bbox, palette, layout):
        super(CustomVertexDrawer, self).__init__(context, bbox, palette, layout)

# Create a graph
g = Graph.Tree(15, 2)

# Define the bounding box
bbox = BoundingBox(400, 400)

# Initialize the Plot with the defined bounding box
plot = Plot(bbox=bbox)

# Retrieve the Cairo context
context = plot.ctx

# Define a layout
layout = g.layout('tree')

# Instantiate your custom vertex drawer
vertex_drawer = CustomVertexDrawer(context, bbox, plot.palette, layout)

# Use the custom drawer to draw vertices
# Note: In practice, you would implement the _draw method to define how to draw the vertices
<|EOT|>
