Splash image horizontal or vertical?

Should the “splash image” be 140 px tall x 250 px wide? or 250 px tall x 140 px wide?
thanks

It should be 140px wide and 250px tall.

my horizontal one is prettier than my vertical. back to the drawing board.

What a shame :frowning: The size of that image is fixed in history from the early 2000’s or perhaps even earlier!