Definitely can.
This is the string I use for my Shaman, it's for all 5 stacks. Stack 1/2 are just colours with no animation, stack 3 is colour that wobbles, stack 4 is colour that pulses, stack 5 is colour that bounces. Every stack the icon gets bigger.
Code:
d0ZaqaGEjj7sfjETuPBlLzQIKMlueZMiNwKBsLQlt6BqfDEbzNuAVODtX(Le)KkfdJQyCqvwMKYqPsPblOgUaheQQJcfLJrvDojvwOkSuQsTyPQwUepKO0tvEmv8CcteQutvutgknDWfvP6QefptQ46cTrve)LkzZqHTtvYLGI0xHIQPru9DjPAKQi1NvjJwf14vPCsOsULKuUMuL7bv4Wq(TQ2MKQM(mZHyMaNGZ)uKFk48uWJRXHLdlZC3CdgyiuGNun8KJxNoYXRxN69uhE45xpXOAY7XfYnyGHqbA9R55u61Rx91l3t916XjujmC7Nma3HBYz34(PE)KmxrVsVjhkq5UkFmGZeB5s66slcA95sy5ChPscO8noPhHLzUYlPmZ1IsqIzceiWP3cqgSkwEqGZHzA9zMZ5L(cZ0wJNiVxn)A17bpp16GZ6WzD1igvRxD02Hwp0kNwFcCorb8TSEdKjalcuUyaweOCjN3WdoKj1qq6nmZ1qjdZCbfvOahsk4mYTrjHsGahusxxAHzUOqDbpOnlQP8Glkuz)Ob4bxuOUGh0wouGYdUOr9snahkcpN6LAaU8dAJdEqB5qbkT(CrH6coxueiJjb8GZ5JgGZNZGAQGzA95ChPscO8TkHXCff8gcCWdAZIAk3uujzUQeo)G24C(ObCtGwqWx4Wbo4Ic1v0KaEqGtajNUHWDSGG0ByFomEdWDsjvvLWyweHTGauLW5m3znDDgOTEpCspclZCrH6Yrcje8GR8skZCTOeKyMabodQPC2h4Ic1Lb1u2NlkuxoFRpc4bNJesiyMtKmxsk3on(UJVLabomEdSuvkT1KZHnjcKqHgGC6k4WuhUIELEtouGYb6niwuoqVbXIYTavssGj4lJ347Tm274XjaKtxHSVbqjttnahUSdx4(oxv)3O1dhkcpp4sy5ChPscO8TkH9ReEaYPlx1tyHZ0wVhUKXlTiu2NZeB5s66slcA95eaYPRWTFYaCYE3MV7nhO3azFPVWmT(06tBnA9PTdT(0kNwFceOTgZCorb8TSEdKjalcuUyaweOCitQHG0ByMRHsgM5ckQqboKuWzKBJscLaboOKUU0cZCrH6cEqBwut5bxuOUIMeWdUOqL9JgGhCrH6cEqB5qbkp4C(ObCtGwqWx4Wbo4Gh0wouGsRpxuOUGZffbYysap4C(Ob4QXPEPgGl)G24Ig1l1aCOi8CWdAZIAk3uujzUQeo)G24mOMkyMwFo3rQKakFRsymxrbVHabobKC6gc3XccsVH95W4na3jLuvvcJzre2ccqvcNZCN101zGwC6Ht6ryzMlkuxgutzFUYlPmZ1IsqIzce4mOMYzFGlkuxosiHGhCrH6Y5B9rap4CKqcbZCIK5ss52PX3D8TeiWHXBGLQsPTMCoSjrGek0aKtxbhM6Wv0R0BYHcuoqVbXIYLCEdp4a9gelk3cujjbMGVmEJV3YyVJhNaqoDfY(gaLmn1aC4YoCH77Cv9FJwpCOi88GlHLZDKkjGY3QeUwLWdqoD5QEclCMwC6HZ5L(cZ0wJNuFV6RRUE403th59WZVtpIr16jN2o06Hw506tGZeB5s66slcA95sgV0IqzFobGC6kC7NmaNS3T57EZb6nq2x6lmtRpT(0wJwFA7qRpTYP1NabA7WmNtuaFlR3azcWIaLlgGfbkxY5n8GdzsneKEdZCnuYWmhekq5ckQqbUGIkuGR6F)(skbcCqjDDPfM5Ic1f8G2SOMYdodQPcMP1NZDKkjGY3QegZvuWBiWffQSF0a8GlkuxWdAlhkq5bNZhnGBc0cc(choWbh8G2YHcuA95Ic1fCUOiqgtc4bxuOUIMeWdoNpAaUoCWdAZIAk3uujzUQeo)G24Ig1l1aCOi8CQxQb4YpOncCci50neUJfeKEd7ZHXBaUtkPQQegZIiSfeGQeoN5oRPRZaT45Ht6ryzMlkuxosiHGhCLxszMRfLGeZeiWzqnLZ(axuOUmOMY(CosiHGzorYCjPC7047o(wcCrH6Y5B9rapiWHXBGLQsPTMCoSjrGek0aKtxbhM6Wv0R0BYHcuoqVbXIYb6niwuUfOsscmbFz8gFVLXEhpobGC6kK9nakzAQb4WLD4c335Q6)gTE4qr45bxclN7ivsaFPvjCNkHhGC6YzITCjDDPfbT(CvpHfotlEE4sgV0IqzFoNx6lmtBnEcoL3RJh)E41RtD1Qvxh8igvRxhA7qRhALtRpbobGC6kC7NmaNS3T57EZb6nq2x6lmtRpT(0wJwFA7qRpTYP1NabALZmNZl9fMP1NNuV86QRJFn5E6iVMN665tmQwVE02Hwp0kNwFcCorb8TSEdKjalcuUyaweOCjN3WdoKj1qq6nmZ1qjdZCqOaLlOOcf4ckQqbUGOKqjqGdkPRlTWmxuOUGh0Mf1uEWffQSF0a8GlkuxWdAlhkq5bx0OEPgGdfHNt9snax(bTXbpOTCOaLwFUOqDbNlkcKXKaEW58rdWjNZGAQGzA95ChPscO8TkHXCff8gcCWdAZIAk3uujzUQeo)G24C(ObCtGwqWx4Wbo4Ic1v0KaEqGtajNUHWDSGG0ByFomEdWDsjvvLWyweHTGauLW5m3znDDgOfppCspclZCrH6Yrcje8GR8skZCTOeKyMabodQPC2h4Ic1Lb1u2NlkuxoFRpc4bNJesiyMtKmxsk3on(UJVLabomEdSuvkT1KZHnjcKqHgGC6k4WuhUIELEtouGYb6niwuoqVbXIYTavssGj4lJ347Tm274XjaKtxHSVbqjttnahUSdx4(oxv)3O1dhkcpp4sy5ChPscO8TkHLxj8aKtxUQNWcNPfppCjJxArOSpNj2YL01Lwe06ZjaKtxHB)Kb4K9UnF3BoqVbY(sFHzA9P1N2A06tBhA9PvoT(eiqBpM5CIc4Bz9gitaweOCXaSiq5qMudbP3WmxdLmmZbHcuUGIkuGlOOcf46)rJJsGahusxxAHzUOqDbpOnlQP8Glkuz)Ob4bxuOUGh0wouGYdUOr9snahkcpN6LAaU8dAJdEqB5qbkT(CrH6coxueiJjb8Glkuxrtc4bNZhnaxpoNpAa3eOfe8foCGdo4bTzrnLBkQKmxvcNFqBCgutfmtRpN7ivsaLVvjmMROG3qGaNasoDdH7ybbP3W(Cy8gG7KsQQkHXSicBbbOkHZzUZA66mqBDE4KEewM5Ic1Lb1u2NR8skZCTOeKyMabodQPC2h4Ic1LJesi4bNJesiyMtKmxsk3on(UJVLaxuOUC(wFeWdcCy8gyPQuARjNdBseiHcna50vWHPoCf9k9MCOaLd0BqSOCGEdIfLBbQKKatWxgVX3BzS3XJtaiNUczFdGsMMAaoCzhUW9DUQ(VrRhoueEEWLCEdp4sy5ChPscO8TkH7vj8aKtxUQNWcNPTopCjJxArOSpNj2YL01Lwe06Z58sFHzA9P1dT14j4jhN4St9Y94rU86R577HyuTE4Kw506tGtaiNUc3(jdWj7DB(U3CGEdK9L(cZ06tRpT1O1N2o06tRCA9jqGaNx06l3JhcKa