I am using GCP theme in my DSL code but icon size rendered is very small, how to increase it

[Manas171]

I am using GCP theme in my DSL code but icon size rendered is very small, how to adjust the size of icon rendered sine I cant find any documentation for that. I tried creating my own theme for GCP icons where I tried replicating https://static.structurizr.com/themes/google-cloud-platform-v1.5/icons.json (theme provided by structurizr) format by additionally adding width and height parameter, for example
"elements": [
{
"tag": "Google Cloud Platform - Cloud Run",
"icon": "Cloud_Run.png",
"width": "160",
"height": "160"
},
and hosted my updated json on my github and tried to pass the raw json link to the theme parameter in the DSL, still those diagram is not getting rendered.
I want clarity over 3 topics:

1. Is there Any way that we can control the size of icons
   2)Steps to create our own custom theme for Icons and where to publish the json so that I can pass it to theme tag in DSL
   3)IAs u can see in diagram png I have provided, The description and tag for that specific container is above the icon, I want that Icon must be at the top and than title, description

DSL CODE LINK:https://drive.google.com/file/d/1AHZO8vlnWQsYnU4ner2fb1sYVQekqrA1/view?usp=sharing
Diagram png link: