Show shell type in a Konsole

very simple,
echo $0

show pc name

echo $HOST

show home directory
echo $HOME

show user name
echo $USER

Set to healthy background color for your monitor.

Set a suitable background for the montior will protect the eyes from eyestrain in some degree.

The best I find from a report is RGB = #cce8cf,

this cell is with the background color #cce8cf

HSL = 85, 90, 205

try to set this color for your browser and system back ground.