Customise the Appearance of an OpenSource Application (OwnCloud) with Our Company Branding

We are looking to add our own company branding (Name & Logo) to the opensource software OwnCloud (I have attached some basic images below to illustrate the sort of alterations we require) We require these alterations ONLY to the Windows and Mac desktop clients (i.e - we do NOT require any changes making to the Mobile clients or web interface at this stage). OwnCloud works exactly the same as Dropbox but will be hosted on our servers. Therefore in addition to the logos and artwork in the install wizard and desktop client, the systems tray icons (that show a green tick when file synced, blue arrow when syncing etc) also need to be changed. All images etc will be provided. Changed required will include: -Replacing the OwnCloud name and Images with our own: (Install Wizard, Desktop Client, Desktop Icon, Icon, System Tray Icons, etc) -Disabling the auto-update check Further information on this software as well as the source code code is available from [login to view URL] Additional information: [login to view URL] [login to view URL] We will probably also require further or ongoing amendments in the future, but at this stage we are just looking to personalise the software with our own branding. If anyone can help, please get in touch (as you can probably tell, our knowledge of app development is very limited, and this is our first time using freelancer so please bear with us if the terminology etc isn't correct) Many thanks - Nick