What does 控制旋钮 look like on emojidex?

On emojidex it is the design shipped in 1.0.34, shown above at full size. Older revisions are listed beneath it.

When did emojidex add 控制旋钮?

emojidex first drew 控制旋钮 in 1.0.14, released 2016年5月15日.

emojidex has shipped 6 versions of 控制旋钮. Each is dated, so you can see when the design changed.

emojidex 1.0.14

emojidex shipped a new design for 控制旋钮 in 1.0.14, released 2016年5月15日. The previous design is shown beside it.

The first emojidex release we hold for this emoji.

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

What does 控制旋钮 look like on emojidex?: On emojidex it is the design shipped in 1.0.34, shown above at full size. Older revisions are listed beneath it.
When did emojidex add 控制旋钮?: emojidex first drew 控制旋钮 in 1.0.14, released 2016年5月15日.
How many times has emojidex redrawn 控制旋钮?: emojidex has shipped 6 versions of 控制旋钮. Each is dated, so you can see when the design changed.