To Insert a Logo

1. Go to the community page
2. Click on the Updates tab 
3. Click Edit Cover Photo
4. Click Upload New Photo option in the Cover photo options
5. Select a photo you want to upload
6. Click the Mascot Image
7. Click Upload New Photo option in the Mascot image options
8. Select a photo you want to upload

To insert theme color 

1. Click on the Settings wheel on the top right corner of your community page to open the menu
2. Click Edit Settings
3. Click on the Theme
4. Choose a color 
5. Tap Done in the top right corner