What does Straight Ruler look like on HTC?

On HTC it is the design shipped in Sense 8, shown above at full size. Older revisions are listed beneath it.

When did HTC add Straight Ruler?

HTC first drew Straight Ruler in Sense 7, released March 30, 2015.

HTC Corporation has shipped 2 versions of Straight Ruler. Each is dated, so you can see when the design changed.

HTC

HTC Corporation has drawn Straight Ruler 2 times. Every revision HTC has shipped is below, newest first.

What does Straight Ruler look like on HTC?: On HTC it is the design shipped in Sense 8, shown above at full size. Older revisions are listed beneath it.
When did HTC add Straight Ruler?: HTC first drew Straight Ruler in Sense 7, released March 30, 2015.
How many times has HTC redrawn Straight Ruler?: HTC Corporation has shipped 2 versions of Straight Ruler. Each is dated, so you can see when the design changed.

HTC artwork for this emoji spans 2015 to 2016.