thm­box – Dec­o­rate the­o­rem state­ments

The pack­age de­fines an en­vi­ron­ment thm­box that presents the­o­rems, def­i­ni­tions and sim­i­lar ob­jects in boxes dec­o­rated with frames and var­i­ous aes­thetic fea­tures. The stan­dard macro \newthe­o­rem may be re­de­fined to use the en­vi­ron­ment.