dual properties shorthand

[Mouvedia]

Properties like contentAlignX/contentAlignY or anchorX/anchorY should have a common property.

align: left, top;
//would be equivalent to
alignX: left;
alignY: top;

contentAlign: center;
//would be equivalent to
contentAlignX, contentAlignY: center;

[FSX]

I think this would be a good addition. This reduces duplication of code in certain cases.

[veosotano]

I'm against this on the basis that when a property accepts multiple values, it should accept an indefinite amount of values. It's the 0-1-infinity rule. We could consider using an align property which takes something like a @point object. It would look like this:

align: @{ x: left; y: top };
//equivalent to
align.x: left;
align.y: top;
//also equivalent to
align: @{ left; top };

[Mouvedia]

It's not always the case (take the corners property on @Rectangle for instance).

I really think it's something CSS users will miss. We should provide a way to achieve what they want while internally dealing with it (using an object if needed). I am still supporting it because such a shorthand will be expected and covers a basic use case (positioning).

align: <common>;
align: <X>, <Y>;

contentAlign: <common>;
contentAlign: <X>, <Y>;

anchor: <common>;
anchor: <X>, <Y>;