Browser Logo
http://icooon-mono.com/11398-%E3%83%96%E3%83%A9%E3%82%A6%E3%82%B6%E3%82%A6%E3%82%A3%E3%83%B3%E3%83%89%E3%82%A6%E3%81%AE%E3%82%A2%E3%82%A4%E3%82%B3%E3%83%B3/
Postgres Logo Trademark Policy
Inclusion of the name(s) or logo in your software or documentation to indicate that it runs on or with PostgreSQL.
Kubernetes Branding Guidelines
https://github.com/kubernetes/kubernetes/blob/master/logo/usage_guidelines.md
https://www.linuxfoundation.jp/trademark-usage/
Git Logo by Jason Long is licensed under the Creative Commons Attribution 3.0 Unported License.
https://git-scm.com/downloads/logos