ΔE 25.5, loose: different enough that you should pick on purpose. Screaming Sun is a little lighter, much more saturated, cooler than Inner Light.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 25). Screaming Sun is a little lighter, much more saturated, cooler than Inner Light.
The same difference applies the other way round: Inner Light is a little darker, much more muted, warmer.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Inner Light on the colour wheel See Screaming Sun on the colour wheel
All matches: Inner Light equivalents · Screaming Sun equivalents