By default WordPress will display your site’s title as a logo, let’s see how you can replace it with your awesome image logo.
Go to Appearance > CSSIgniter Settings > Site Options and in the Logo box, click Upload Image
the media manager window will pop-up, click Upload Files and then Select Files
upload your logo image, make sure the Full size is selected on the drop down menu and click the Use this file button.
finally click the Save changes button on the panel and you are done, you have added your logo.