Take a copy in pc. Modify and replace. In case any problem restore old one. Use twrp or smthing similer.Do you think that I can delete this line "debug.hwui.force_dark=1" and put it back in the build.prop again after reboot please ?
Because it's the first time that I've modified this system file so I'm not used to manipulating it...
Thank you in advance for your answer.