trådar, typ

Rev: src/modules/image/blit.c:1.9
Rev: src/modules/image/image.c:1.36
Rev: src/modules/image/lzw.c:1.9
Rev: src/modules/image/matrix.c:1.9
Rev: src/modules/image/operator.c:1.4
Rev: src/modules/image/quant.c:1.21
Rev: src/modules/image/togif.c:1.22