The image contains Google Chrome, Java, xvfb, ffmpeg, and allure. These tools which are needed for the development. Primarily, in the stack we're using, he-he.
Versions:
Java:
openjdk version "1.8.0_222"
OpenJDK Runtime Environment (build 1.8.0_222-8u222-b10-1~deb9u1-b10)
OpenJDK 64-Bit Server VM (build 25.222-b10, mixed mode)
Google Chrome 80.0.3987.132
Allure: 2.11.0