Dunno if you're taking suggestions, but I got a couple small ones after testing this out with HSK.

First, being able to cancel a roll would be nice. If you accidentally click roll with bad settings or otherwise have too high of settings, as [THJ] Barton reported in the comments it'll continue to roll forever forcing you to force close the game.

Second, to be able to filter by Passion (the small or big flame icon next to a Skill). I specifically hunted this mod down because I don't want to cheat/micromanage with Prepare Carefully, and I like having most of my characters be decided randomly. But I also don't want to spend a ton of time re-rolling just to get a starting character with 2 or 3 skills I want. With Verify Start I can roll for those 2 or 3 skills easily, but I find myself still having to manually reroll if I want a character with passion for those skills. Should you like the idea of being able to filter for passions and decide to try it, one possibly good way (graphically) to implement this would be to have the middle click on skill numbers, cycle through On, Off, Passion1, then Passion2, instead of just On and Off like normal.

Trait filtering would be cool too, but I assume that'd be more difficult to add, and honestly I'd be totally happy with just a passion filter if nothing else.

Edit: Oops nvm, after more googling I see people on the ludeon forums are recommending using RandomPlus for that functionality instead.