In this example, we will change background color for banners and text color.
In the outline panel find background shape.
You can change the color in Shape panel
NOTE: sometimes a background color for buttons or banners is located in differnet sprites, therefore, we need to change their clor 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.
Feel free to check the detailed video tutorial below: