Disappearing icon

hello! i decided this problem the first of all: - a link private_messages changed to private-messages ("_" changed to "-") so, 1) in Platon (admin/appearance/settings/platon) we are needed to add new class: .messages{ background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 34.02 29.27'%3E%3Cdefs%3E%3Cstyle%3E.cls-1%7Bfill:%23c7c7c7;%7D%3C/style%3E%3C/defs%3E%3Ctitle%3Epicto-messages%3C/title%3E%3Cg id='Layer_2' data-name='Layer 2'%3E%3Cg id='Calque_1' data-name='Calque 1'%3E%3Cpath class='cls-1' d='M28.6,0H5.42A5.62,5.62,0,0,0,0,5.8V16a5.62,5.62,0,0,0,5.42,5.8h.21v7.48L12,21.79H28.6A5.62,5.62,0,0,0,34,16V5.8A5.62,5.62,0,0,0,28.6,0ZM6.28,4.18H23V7H6.28Zm0,7H17.46V14H6.28Zm16.14,6.3H6.28V14.71H22.42Zm6.23-7H6.28V7.69H28.65Z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E"); background-position-x: 50%; background-position-y: 0%; font-family: "Source Sans Pro", sans-serif; font-size: 14.399999618530273px; font-weight: normal; text-align: center; background-repeat: no-repeat; } 2) change view location admin/structure/block/manage/views_block__private_message_block_all?destination=/admin/structure/block change pages on to: /private-messages /private-messages/* /private-message/* 3) edit view admin/structure/views/view/private_message?destination=/admin/structure/views change global string in header toCreate message

Messages

4) add a new rule to .htaccess in top of rules: RewriteRule ^private_messages/(.*) /private-messages/$1 [R=301,L] So, now when somebody go to private_messages it changed to private-messages and icon dispayed not so good, but it working if you will add anything more - say it to me, please, cause i needed it to