wrong type in defaultColor in OutlineEffect

[igpdev-428]

• three version: 0.150.1
• @types/three version: 0.163
• three-stdlib version: 2.33.0

Problem description:

defaultColor in OutlineEffectParameters for the OutlineEffect class is set to number[]. It should probably be Color

Relevant code:

export interface OutlineEffectParameters {
defaultThickness?: number | undefined
defaultColor?: number[] | undefined
defaultAlpha?: number | undefined
defaultKeepAlive?: boolean | undefined
}

Suggested solution:

Change it to be Color type.
Thank you for providing this library for us developers.