The blue contributions grid only shows up for accounts that haven't enabled the new github activity overview feature
To see if someone has this feature enabled go to their profile on the desktop github website and if it has the bottom stuff they have it enabled you cannot see their contributions on FastHub
FastHub Version: 4.6.7
Android Version: 9 (SDK: 28)
Device Information:
Model: OnePlus 6T
The blue contributions grid only shows up for accounts that haven't enabled the new github activity overview feature
To see if someone has this feature enabled go to their profile on the desktop github website and if it has the bottom stuff they have it enabled you cannot see their contributions on FastHub