doc/design/selective_masking/p4/README.md
<b>Layer lines_ef106202_b4e1_49c4_a3d0_b65eb8bbb6d6 : Different sets of symbol layers are masked by different sources ! Only one (arbitrary) set will be retained ! </b>
<table border=1> <tr> <td>Second pass</td> <td><b>Lines</b> without <b>1</b> </td> </tr> <tr> <td>Composition with merged mask</td> <td></td> </tr> <tr> <td>Second pass image <b>inside</b> mask</td> <td></td> </tr> <tr> <td>First pass image <b>oustide</b> mask </td> <td></td> </tr> <tr> <td>Updated first pass image</td> <td></td> </tr> </table>Final image