If the text direction is wildcarded, this source can be used as the base image for an icon in any TextDirection.
Use IconTheme instead.
If the text direction is not wildcarded, then the text direction the icon source applies to should be set with set_direction, and the icon source will only be used with that text direction.
IconSet prefers non-wildcarded sources (exact matches) over wildcarded sources, and will use an exact match when possible.
| this | |
| setting |
true to wildcard the text direction |