Answer:

Most things for the design is changable using the CSS file.
The shipped minimum CSS file is done for small devices. It handles the various screen sizes for using it on mobile devices.

All elements have descripting names. As an example the connection list is named "connlistTable". In the CSS some @media elements detect the screen with and hides some columns if it is not enougn screen size avaliable.

All JavaScript does not change the display as colors or text hints, all is none with CSS

Answer:

The picture content can be changed in multiple ways

• change the file content. In most cases this will fit.
• change the file names. So the company name file may not offer the OEM.