I think that Inkling's ink should refill passively, just like in the game. Slowly of course, slower than if you dive into the ink and recharge it.
I think that the splat bomb's area of damage should be increased, the radius should be increased. Make it so that it does little damage and inking on the edges, but heavy inking and damage closer to the centre.
And, I think that Inkling's jump height should be reduced. Yes, I think their hopping should be a lot closer to the ground. Whilst seeming bad, I think that this is more game-accurate. And, it could make combos easier to do.

It took me a while to really understand Smash Ultimate.  I'm starting to really roll with inkling.  But i love that the smash community isn't all tier chasers.   Seeing a Yoshi here too is fun.

Mark 🦕🦕🦕🦕💚💚💚💚
Shirayuki is great, Inkling takes a lot of work to learn and master, and he gets very nice results in most tournaments he attends, like Mark (Top 16/ 24/32 in most supermajors; and making TOP 8/12 in many Majors!!)

Good try for Shirayuki. That match up is so garbage for Inkling.