Filtering nodes in graph by colours based on a numerical value

[fazeen]

Things I have tried

I searched the forums using various filters as in my title but could not find the relevant information.

What I’m trying to do

I want to create a vault with 1000+ topics. Each topic will have a number of questions ranging from 1-99. I want to be able to visualise the graphs (using colours or by hiding and unhiding) based on various parameters such as:

1. Number of questions within each topic: So for example as in the screenshot below; yellow nodes if number of questions is <3; green nodes if number of questions 4-6; red if number of questions >6 and so on.
2. #hashtags
3. Number of links and backlinks

I am attaching the screenshot below to give an idea of what I’m trying to do. I was able to figure out how to filter by hashtags. But totally confused about the other two. Absolute beginner here so any help would be highly appreciated.

Thanks in advance