Hello schturman, greetings..
i applied tweak F-5 (apply other coloured icons to LPS and status bar, along with tweakF-4(green icon on full charge). but when i tried restoring it with F-9, the tweak still remained as it is after reboot.
Also, i tried enlarging conversation font size with incoming/outgoing as 34 and time stamp as 24 for both and font as LIGHT & light respectively as asked, but could not see the changes. I could successfully apply black theme with rounded bubbles. please excuse ma english..
m using v9.3.5a version