Installation manual
1. File call-ui.css of applied archive call-ui.zip throws on the smartphone in mass storage mode, for example in the folder / Downloads (full path to the smartphone / home / user / MyDocs / Downloads /)
2. Turn off your smartphone from your PC.
3. The smartphone run the terminal
4. We enter the superuser root (team devel-su)
5. Type in the terminal string
Code:
cp-f / home / user / MyDocs / Downloads / call-ui.css / usr / share / themes / base / meegotouch / call-ui / style /
6. Close terminal and reboot your smartphone
To roll back to the original image repeat steps 1-6 using a file from a backup call-ui_original.zip
PS. Thank alxs_as-is the idea and help