it's berwarna not bewarna
"Berwarna" not "Bewarna"
Why is berwarna used instead of warna?
Mengapa berwarna digunaka , bukan warna ?
Berwarna means "having the color" or "colored". The to be in this sentence explains "having the color", but Indonesian has no "to be". Using only warna is like saying "The duck is color green".
Both are correct, but "berwarna" has a more formal tone.