Back everything up.
From the command prompt:
Code:
adb pull /system/app/Rosie.apk
In your SDK/tools folder will be the file Rosie.apk. Open it with 7zip, and find the /res/drawable-480x320/ folder. Inside is the file common_mainnav_scroller1.png.
Open that file with any graphics editor, and make it fully transparent.
Don't try to substitute another image if you can't/don't know how to resign the apk.
Copy the edited png file back inside the ROsie.apk file and overwrite the old one.
Push the file back to your phone:
Code:
adb remount
adb push Rosie.apk /system/app/Rosie.apk
abd reboot
Phone will reboot and the green indicator will be gone.