Sin.cia in local Chinese culture means “new year”.
One thing that number one related to sincia is Hong bao / Ang pao.
It might look like envelopes filled with money (commonly).
But bigger than that it’s the symbol of the culture to give or share fortune through the generations.
From the older generations to the younger generations.
Most of them are red because in Chinese cultures, red is representing joy, happy, wealth etc. as long as it’s not black or plain white in dominant. Other colors are fine.
Adopting the now a days design principles or styles,
we trey to applied it into the traditional symbol; Hong bao / Ang pao.