Custom logo in grafana page

What Grafana version and what operating system are you using?

What are you trying to achieve?
I want to change the logo of grafana to custom logo

How are you trying to achieve it?
I changed the grafana_icon.svg to my required .svg

What happened?
the image got replaced but it looks like compressed

What did you expect to happen?
the logo to display properly

and also in the latest version UI has been changed. there is lot of empty space at the top 2 rows of page , I want to place my custom logo beside grafana logo ,If the above doesn’t work. Is it possible?