Removed the drawSelectedVerts and added drawSelectedVertices, which uses dm->foreachMappedVert. In calc_weightpaint_vert_color(): Made the weight paint color black and return instead of input=-1 Made the pose bone selection normal when multi-paint is inactive. Name fix for functions using mv instead of mvert. Used vector functions provided by the math lib. Changed some MEM_callocN references to be stacks. Changed dm_deform_clear to use ob->derivedDeform primarily Made the variable "float **changes" into "float (*changes)[2]" Used CTX_data_active_object() in place of CTX_data_pointer_get_type() Added the invert selection hotkey "Ctrl+I" to weight paint's vertex mask.