In this example, we will change background color for banners and text color.
In the outline panel find background shape.
NOTE: sometimes a background color for buttons or banners is located in different sprites, therefore, we need to change their color as well.
Lets change the Text Color now.
Find the sprite for the text which you want to edit
Open the text panel
Click on the Color Picker and choose a desired color.
Publish your .SWi file to see the preview.