/home/homeassistant/.homeassistant/www/custom_ui/floorplan/floorplan.svg (currently only 1 sensor listed) I used Boxy SVG but may retry with Inkscape:
<?xml version="1.0" encoding="utf-8"?>
<svg viewBox="-99 -128 925 733" xmlns="http://www.w3.org/2000/svg">
<path d="M 36.609 334.347 L 36.609 501.251 L 484.615 501.251 L 484.615 334.347 L 36.609 334.347 Z" style="fill: rgb(216, 216, 216);"/>
<path d="M 518.459 185.546 H 674.487 V 500.103 H 518.459 V 185.546 Z" style="fill: rgb(216, 216, 216);"/>
<path d="M 250 186.681 L 250 334.36 L 517.312 334.36 L 517.312 186.681 L 250 186.681 Z" style="fill: rgb(216, 216, 216);"/>
<path id="binary_sensor.multisensor1_sensor_9_0" d="M 206.404 124.57 L 206.404 333.624 L 247.705 333.624 L 247.705 124.57 L 206.404 124.57 Z" style="fill: rgb(216, 216, 216);"/>
<path d="M 295.937 124.007 H 398.158 V 183.757 H 295.937 V 124.007 Z" style="fill: rgb(216, 216, 216);"/>
<path d="M 228.225 -85.208 H 397.997 V 122.859 H 228.225 V -85.208 Z" style="fill: rgb(216, 216, 216);"/>
<path d="M 36.609 -19.488 H 227.239 V 123.657 H 36.609 V -19.488 Z" style="fill: rgb(216, 216, 216);"/>
<path d="M 36.609 124.715 L 36.609 333.2 L 205.256 333.2 L 205.256 124.715 L 36.609 124.715 Z" style="fill: rgb(216, 216, 216);"/>
<path d="M 224.69 502.397 L 224.69 551.729 L 517.633 551.729 L 517.633 502.397 L 224.69 502.397 Z" style="fill: rgb(216, 216, 216);"/>
<rect transform="matrix(1, 0, 0, 0.999999, -491.854309, -130.746732)" style="fill: rgb(216, 216, 216);" x="977.641" y="465.376" width="30.081" height="57.547"/>
<rect style="fill: rgb(216, 216, 216);" x="485.786" y="393.482" width="31.389" height="107.246"/>
<rect x="161.434" y="126.677" width="43.16" height="35.313"/>
<rect x="250.368" y="165.913" width="43.16" height="17.003"/>
<rect x="249.061" y="298.009" width="43.16" height="35.313"/>
<rect style="fill: rgb(216, 216, 216);" x="249.061" y="125.369" width="45.776" height="37.928"/>
<path d="M 467.477 151.785 L 467.477 177.943 L 508.021 177.943 L 508.021 151.785 L 467.477 151.785 Z" style="fill: rgb(216, 216, 216);" transform="matrix(1, 0, 0, 1.000001, 0, 7.588885)"/>
<path d="M 45.032 465.416 H 68.574 V 490.266 H 45.032 V 465.416 Z" style="fill: rgb(253, 253, 253);"/>
<path d="M 173.858 465.416 L 197.4 465.416 L 197.4 490.266 L 173.858 490.266 L 173.858 465.416 Z" style="fill: rgb(253, 253, 253);"/>
<path d="M 385.734 388.251 L 423.663 388.251 L 423.663 424.873 L 385.734 424.873 L 385.734 388.251 Z" style="fill: rgb(253, 253, 253);"/>
<path d="M 275.872 502.037 L 299.414 502.037 L 299.414 526.887 L 275.872 526.887 L 275.872 502.037 Z" style="fill: rgb(253, 253, 253);"/>
<path d="M 478.593 161.989 L 502.135 161.989 L 502.135 186.839 L 478.593 186.839 L 478.593 161.989 Z" style="fill: rgb(253, 253, 253);"/>
<path d="M 103.887 209.726 L 141.816 209.726 L 141.816 246.348 L 103.887 246.348 L 103.887 209.726 Z" style="fill: rgb(253, 253, 253);"/>
<path d="M 324.264 249.617 L 347.806 249.617 L 347.806 274.467 L 324.264 274.467 L 324.264 249.617 Z" style="fill: rgb(253, 253, 253);"/>
<path d="M 431.509 248.309 L 455.051 248.309 L 455.051 273.159 L 431.509 273.159 L 431.509 248.309 Z" style="fill: rgb(253, 253, 253);"/>
<path d="M 215.71 247.001 L 239.252 247.001 L 239.252 271.851 L 215.71 271.851 L 215.71 247.001 Z" style="fill: rgb(253, 253, 253);"/>
<path d="M 236.636 133.216 L 260.178 133.216 L 260.178 158.066 L 236.636 158.066 L 236.636 133.216 Z" style="fill: rgb(253, 253, 253);"/>
<path d="M 46.995 296.7 L 70.536 296.7 L 70.536 321.55 L 46.995 321.55 L 46.995 296.7 Z" style="fill: rgb(253, 253, 253);"/>
</svg>
From configuration.yaml:
zones:
view: yes
name: Zones
entities:
- group.layout
####GROUPS
Layout:
name: Zones
entities:
- sensor.template_last_motion
- binary_sensor.floorplan
From customize.yaml:
binary_sensor.floorplan:
custom_ui_state_card: floorplan
floorplan_image: /local/custom_ui/floorplan/floorplan.svg
password: *****
track_duration: 10
color_on: '#F8B9BE'
color_off: '#C4EDB1'
color_other: '#E0E0E0'
last_motion_entity: sensor.template_last_motion
entities:
- binary_sensor.multisensor1_sensor_9_0
From binary_sensors.yaml:
- platform: mqtt
state_topic: "dummy/floorplan/sensor"
name: "Floorplan"
And I created/copied /home/homeassistant/.homeassistant/www/custom_ui/state-card-floorplan.html as well.