Here's Yogi at 3 months of age
And today at 1 yr old.
Not a whole lot of difference.

But I just love his dark color. I'm hoping he's not done growing yet. I estimate him to be around 4 - 4 1/2 lbs right now. Would really love to see him between 5 - 6 lbs.
For contrast, here's Yogi's older sister
Gracie Ruth at 3 months old - you can see the grey already spreading across her head & body.
And at 1 year old - she's 19 months now and still changing.