sent the <sticker.psd> file below to maker, and ask to add 20px center stroke to sticker.

把下方的 <sticker.psd> 文件发给制造商, 并要求给贴纸添加 20px 的中心描边.

sticker.psd

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/5a6504ea-4f8f-4ea2-b0b4-3a0a1e2a0512/sticker.png