Undo deprecation of color parameter

[xinoxapps]

Can the color parameter be recovered to its full glory?

          SvgPicture.asset(
            titleIcon,
            colorFilter: const ColorFilter.mode(Colors.green, BlendMode.srcIn),
            width: 18,
            height: 18,
          ),

vs

          SvgPicture.asset(
            titleIcon,
            color: Colors.green,
            width: 18,
            height: 18,
          ),

👍

[dnfield]

Duplicate of #856

[dnfield]

The TL;DR for that issue:

• The parameter is deprecated but not going anywhere anytime soon.
• It's deprecated because it's confusing and potentially very expensive to use.
• Anyone can trivially write a method to create the right kind of color filter if you commonly use srcIn blending.
• I'd like users to think about whether they want a colorMapper or colorFilter. In almost all cases you should prefer a colorMapper where that will work.