Literature Reference: 但虑彩色污，无虞臂胛肥。—— 《句》作者：郑澣 Only worry about the staining of colors, but have no concerns about the thickness of arms. Source from 'Ju' by Zheng Han.
无: No, it's clean, won't happen.
虞: Anticipation and Omen.
Meaning: Worry-free, peaceful, and smooth sailing.