To change T4W’s Color Theme click on the Configuration Tab located along the top of the Dashboard and then click the Configure Color Theme menu option.
The Color Theme window will be shown which will look like this.
Here you can select one of the Default Themes or change the theme to the colors you would like to use. To change a color select which item (Background, Normal Text, Accent Background, Accent Text) from the Theme Elements and then click on the color you would like to use for that element. You will see an example of that that will look like on the right side of the window. You can also change the Frame Style to be Filled with a color or outlined with the color. After you have made the changes that you want click the Save Color Theme button.