If the source image has an alpha channel and the target doesn't, then
the source is treated as if composed onto a black background.
-If the source image is color and the target is gray scale, the the
+If the source image is color and the target is gray scale, the
source is treated as if run through C<< convert(preset=>'gray') >>.
=item rubthrough()
=item *
-C<tx>, C<ty> - location in the the target image ($self) to render the
+C<tx>, C<ty> - location in the target image ($self) to render the
top left corner of the source.
=item *
=item *
-C<tx>, C<ty> - location in the the target image ($self) to render the top
+C<tx>, C<ty> - location in the target image ($self) to render the top
left corner of the source. These can also be supplied as C<left> and
C<right>. Default: (0, 0).