To make changes to the panel colors, run config [parameter_name] inside the Hummingbot client. For example, the command for changing the log pane color is config log-pane and enter the hex code of the desired color.
Press CTRL + R while inside Hummingbot to reset the style to use its default colors.
# Background color of the top pane
top-pane: '#000000'
# Background color of the bottom pane
bottom-pane: '#000000'
# Background color of the output pane
output-pane: '#282C2F'
# Background color of the input pane
input-pane: '#151819'
# Background color of the logs pane
logs-pane: '#151819'
# Terminal primary color (text)
terminal-primary: '#00FFE5'