diff --git a/basis/images/bitmap/authors.txt b/extra/images/bitmap/authors.txt
similarity index 100%
rename from basis/images/bitmap/authors.txt
rename to extra/images/bitmap/authors.txt
diff --git a/basis/images/bitmap/bitmap-tests.factor b/extra/images/bitmap/bitmap-tests.factor
similarity index 100%
rename from basis/images/bitmap/bitmap-tests.factor
rename to extra/images/bitmap/bitmap-tests.factor
diff --git a/basis/images/bitmap/bitmap.factor b/extra/images/bitmap/bitmap.factor
similarity index 100%
rename from basis/images/bitmap/bitmap.factor
rename to extra/images/bitmap/bitmap.factor
diff --git a/basis/images/bitmap/summary.txt b/extra/images/bitmap/summary.txt
similarity index 100%
rename from basis/images/bitmap/summary.txt
rename to extra/images/bitmap/summary.txt
diff --git a/basis/images/jpeg/jpeg.factor b/extra/images/jpeg/jpeg.factor
similarity index 100%
rename from basis/images/jpeg/jpeg.factor
rename to extra/images/jpeg/jpeg.factor
diff --git a/basis/images/pbm/authors.txt b/extra/images/pbm/authors.txt
similarity index 100%
rename from basis/images/pbm/authors.txt
rename to extra/images/pbm/authors.txt
diff --git a/basis/images/pbm/pbm-tests.factor b/extra/images/pbm/pbm-tests.factor
similarity index 100%
rename from basis/images/pbm/pbm-tests.factor
rename to extra/images/pbm/pbm-tests.factor
diff --git a/basis/images/pbm/pbm.factor b/extra/images/pbm/pbm.factor
similarity index 100%
rename from basis/images/pbm/pbm.factor
rename to extra/images/pbm/pbm.factor
diff --git a/basis/images/pbm/summary.txt b/extra/images/pbm/summary.txt
similarity index 100%
rename from basis/images/pbm/summary.txt
rename to extra/images/pbm/summary.txt
diff --git a/basis/images/pgm/authors.txt b/extra/images/pgm/authors.txt
similarity index 100%
rename from basis/images/pgm/authors.txt
rename to extra/images/pgm/authors.txt
diff --git a/basis/images/pgm/pgm-tests.factor b/extra/images/pgm/pgm-tests.factor
similarity index 100%
rename from basis/images/pgm/pgm-tests.factor
rename to extra/images/pgm/pgm-tests.factor
diff --git a/basis/images/pgm/pgm.factor b/extra/images/pgm/pgm.factor
similarity index 100%
rename from basis/images/pgm/pgm.factor
rename to extra/images/pgm/pgm.factor
diff --git a/basis/images/pgm/summary.txt b/extra/images/pgm/summary.txt
similarity index 100%
rename from basis/images/pgm/summary.txt
rename to extra/images/pgm/summary.txt
diff --git a/basis/images/png/authors.txt b/extra/images/png/authors.txt
similarity index 100%
rename from basis/images/png/authors.txt
rename to extra/images/png/authors.txt
diff --git a/basis/images/png/png-tests.factor b/extra/images/png/png-tests.factor
similarity index 100%
rename from basis/images/png/png-tests.factor
rename to extra/images/png/png-tests.factor
diff --git a/basis/images/png/png.factor b/extra/images/png/png.factor
similarity index 100%
rename from basis/images/png/png.factor
rename to extra/images/png/png.factor
diff --git a/basis/images/ppm/authors.txt b/extra/images/ppm/authors.txt
similarity index 100%
rename from basis/images/ppm/authors.txt
rename to extra/images/ppm/authors.txt
diff --git a/basis/images/ppm/ppm-tests.factor b/extra/images/ppm/ppm-tests.factor
similarity index 100%
rename from basis/images/ppm/ppm-tests.factor
rename to extra/images/ppm/ppm-tests.factor
diff --git a/basis/images/ppm/ppm.factor b/extra/images/ppm/ppm.factor
similarity index 100%
rename from basis/images/ppm/ppm.factor
rename to extra/images/ppm/ppm.factor
diff --git a/basis/images/ppm/summary.txt b/extra/images/ppm/summary.txt
similarity index 100%
rename from basis/images/ppm/summary.txt
rename to extra/images/ppm/summary.txt
diff --git a/basis/images/tga/authors.txt b/extra/images/tga/authors.txt
similarity index 100%
rename from basis/images/tga/authors.txt
rename to extra/images/tga/authors.txt
diff --git a/basis/images/tga/tga.factor b/extra/images/tga/tga.factor
similarity index 100%
rename from basis/images/tga/tga.factor
rename to extra/images/tga/tga.factor
diff --git a/basis/images/tiff/authors.txt b/extra/images/tiff/authors.txt
similarity index 100%
rename from basis/images/tiff/authors.txt
rename to extra/images/tiff/authors.txt
diff --git a/basis/images/tiff/summary.txt b/extra/images/tiff/summary.txt
similarity index 100%
rename from basis/images/tiff/summary.txt
rename to extra/images/tiff/summary.txt
diff --git a/basis/images/tiff/tiff-tests.factor b/extra/images/tiff/tiff-tests.factor
similarity index 100%
rename from basis/images/tiff/tiff-tests.factor
rename to extra/images/tiff/tiff-tests.factor
diff --git a/basis/images/tiff/tiff.factor b/extra/images/tiff/tiff.factor
similarity index 100%
rename from basis/images/tiff/tiff.factor
rename to extra/images/tiff/tiff.factor