make quantitative scenario comparison more accessible

[stap-m]

Description of the issue

This comes from a reviewer comment:
The quantitative scenario comparison is only based on colors (red, green) to identify identical or different information. This makes the tool not accessible.

Ideas of solution

Add icons (✅, ⚠️ , ... ) instead, maybe also tooltips?

Workflow checklist

• I am aware of the workflow in
  CONTRIBUTING.md

[jh-RLI]

Very good point!!