Dimension cols field limited to u8

[lyneca]

I have this Inky wHAT display, with a resolution of 400x300. The cols field on Dimension is set to a u8 (compared to the rows - a u16). Is there a reason for this?

[wezm]

Is there a reason for this?

Only that I built this crate to support the Inky pHAT, which doesn't need the type to be any bigger than u8. I can't see much issue with enlarging it.