Issue type with custom icons are showing bigger on some screens.
- This issue can be seen on Custom fields > Click on Configure for any field > Edit configuration > Choose applicable issue types.
- Depending on the issue types of a service desk project, the issue can also be view on Project settings > Request types.
- Backlog of a Classic Scrum project.
The icons show as a normal size.
Some system icons and also custom icons are bigger than the others.
To work around this you can try replicating this white margin in your custom icons