What does Cool按钮 look like on JoyPixels?

On JoyPixels it is the design shipped in 11.0, shown above at full size. Older revisions are listed beneath it.

When did JoyPixels add Cool按钮?

JoyPixels first drew Cool按钮 in 1.0, released 2014年9月4日.

JoyPixels, Inc. has shipped 20 versions of Cool按钮. Each is dated, so you can see when the design changed.

JoyPixels 2.2

JoyPixels shipped a new design for Cool按钮 in 2.2, released 2016年5月31日. The previous design is shown beside it.

✳ marks a release that redrew this emoji. The rest re-shipped the design unchanged.

What does Cool按钮 look like on JoyPixels?: On JoyPixels it is the design shipped in 11.0, shown above at full size. Older revisions are listed beneath it.
When did JoyPixels add Cool按钮?: JoyPixels first drew Cool按钮 in 1.0, released 2014年9月4日.
How many times has JoyPixels redrawn Cool按钮?: JoyPixels, Inc. has shipped 20 versions of Cool按钮. Each is dated, so you can see when the design changed.