Fix New GitHub Design Issues

fix_github.css

/* ==UserStyle==
@name           Fix New GitHub Design Issues
@namespace      iamrifki
@version        1.0.1
@description    Fixes several things I dislike about the new GitHub redesign
@author         Dania Rifki <iamrifki0@gmail.com>
==/UserStyle== */

@-moz-document url-prefix("https://github.com/"), url-prefix("https://gist.github.com/") {
  /* Add separators back to the file list. */
  div[role="grid"] > div[role="row"]:not(:last-child) {
      border-bottom: 1px solid #e1e4e8;
  }


  /* Add separators back to the line numbers. */
  .blob-num:not(.pinned-gist-blob-num) {
      border-right: 1px solid #e1e4e8;
  }

  .CodeMirror-gutters > .CodeMirror-linenumbers {
      border-right: 1px solid #e1e4e8;
  }


  /* Zebra table */
  .repository-content > table.highlight tr:nth-child(odd) {
      background-color: #f6f8fa;
  }


  /* Remove margins between the file header and the edit box */
  .file-header.mb-2 {
      margin-bottom: 0 !important;
  }


  /* Gray README header */
  #readme > .Box-header.d-flex.flex-items-center.flex-justify-between.bg-white {
      background-color: #f6f8fa !important;
      border-bottom: 1px solid #e1e4e8 !important;
  }

  /* Fix text contrast */
  .text-gray,
  .muted-link,
  .text-gray-light,
  .link-gray,
  .table-list-header-toggle .btn-link,
  .subnav-search-input,
  .subnav-search-context .btn,
  .commit .commit-title,
  .commit .commit-title a,
  .commit-group-title,
  .drag-and-drop,
  .file .data.empty,
  .link-gray-dark,
  .full-commit .sha-block,
  .full-commit .sha-block > .sha,
  .blob-num,
  .gh-header-meta,
  .timeline-comment-header,
  .discussion-sidebar-heading,
  .discussion-sidebar-item {
      color: #222222 !important;
  }
}