You are downloading the Custom Accents XAP file v1.1.0.0 for Windows Phone. Custom Accents is a free Lifestyle App: With Custom Accents you can choose a personalized accent color for your Windows Phone.Select the color you like for your brand new Accent Color and then hit. You can now download the offline XAP package file to install & try it.
Download Locations for Custom Accents 1.1.0.0 XAP file
Package File
Please Click Here > to retrieve available package files for Custom Accents.
Please be aware that the Custom Accents XAP file you are to download is hosted on the Microsoft Store CDN server. You can read more about Custom Accents or get it on Microsoft Store.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Custom Accents XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.