What are the yellow idioms?

The golden age,

Apprentice,

Tomorrow, yellow flowers,

A dream,

People make an appointment at dusk,

Green and yellow don't answer their phones,

A yellow dream,

Loose lips,

Chinese descendants,

Huang Lu,

Blue sky and yellow land,

Take Huanglong,

Old and yellow,

Yellow hair,

Never die until you reach the Yellow River.

Yellow robe and body,

A handful of loess,

Prime time,

A pillow,

Like a yellow crane,

Pale and emaciated,

Children with yellow mouth,

The yellowbird is behind,

Wei Zi, Yao Huang,

Elephants are yellow,

Yellow ear biography,

Daydreaming,

Huang Zhongmiao,

Both of them are products of visceral diseases, and both of them are due to the bad heart of Yu.