>>718180969
>>718182153
I feel like the leather jacket and overall shift in design is probably indicative of Spark's changed backstory.

In the original backstory of Spark 1, Spark was actually just a jester, and it was something he enjoyed.

Then later the entire plot was rewritten, and Spark was changed to an electrical engineer who had to do the jester work as a fallback after losing his real job, and was unpopular and bad at it.

Basically, the Dev wanted to shift things toward being more "serious".