* Use `.table-unshaded` class on a tables to prevent xaringanthemer's table heading and row shading (#74)

Fixes #74

inst/resources/template.css

 th, td {
   padding: 5px;
 }
-.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+.remark-slide table:not(.table-unshaded) thead,
+.remark-slide table:not(.table-unshaded) tfoot,
+.remark-slide table:not(.table-unshaded) tr:nth-child(even) {
   background: {{table_row_even_background_color}};
 }
 table.dataTable tbody {

tests/testthat/css/duo-header_bg.css

 th, td {
   padding: 5px;
 }
-.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+.remark-slide table:not(.table-unshaded) thead,
+.remark-slide table:not(.table-unshaded) tfoot,
+.remark-slide table:not(.table-unshaded) tr:nth-child(even) {
   background: #E8ECEE;
 }
 table.dataTable tbody {

tests/testthat/css/duo.css

 th, td {
   padding: 5px;
 }
-.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+.remark-slide table:not(.table-unshaded) thead,
+.remark-slide table:not(.table-unshaded) tfoot,
+.remark-slide table:not(.table-unshaded) tr:nth-child(even) {
   background: #E8ECEE;
 }
 table.dataTable tbody {

tests/testthat/css/duo_accent.css

 th, td {
   padding: 5px;
 }
-.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+.remark-slide table:not(.table-unshaded) thead,
+.remark-slide table:not(.table-unshaded) tfoot,
+.remark-slide table:not(.table-unshaded) tr:nth-child(even) {
   background: #CCEDEA;
 }
 table.dataTable tbody {

tests/testthat/css/duo_accent_inverse.css

 th, td {
   padding: 5px;
 }
-.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+.remark-slide table:not(.table-unshaded) thead,
+.remark-slide table:not(.table-unshaded) tfoot,
+.remark-slide table:not(.table-unshaded) tr:nth-child(even) {
   background: #024884;
 }
 table.dataTable tbody {

tests/testthat/css/google_fonts.css

 th, td {
   padding: 5px;
 }
-.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+.remark-slide table:not(.table-unshaded) thead,
+.remark-slide table:not(.table-unshaded) tfoot,
+.remark-slide table:not(.table-unshaded) tr:nth-child(even) {
   background: #eee;
 }
 table.dataTable tbody {

tests/testthat/css/mono_accent.css

 th, td {
   padding: 5px;
 }
-.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+.remark-slide table:not(.table-unshaded) thead,
+.remark-slide table:not(.table-unshaded) tfoot,
+.remark-slide table:not(.table-unshaded) tr:nth-child(even) {
   background: #D9D9E7;
 }
 table.dataTable tbody {

tests/testthat/css/mono_accent_inverse.css

 th, td {
   padding: 5px;
 }
-.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+.remark-slide table:not(.table-unshaded) thead,
+.remark-slide table:not(.table-unshaded) tfoot,
+.remark-slide table:not(.table-unshaded) tr:nth-child(even) {
   background: #0B1E1F;
 }
 table.dataTable tbody {

tests/testthat/css/mono_dark.css

 th, td {
   padding: 5px;
 }
-.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+.remark-slide table:not(.table-unshaded) thead,
+.remark-slide table:not(.table-unshaded) tfoot,
+.remark-slide table:not(.table-unshaded) tr:nth-child(even) {
   background: #3C4A47;
 }
 table.dataTable tbody {

tests/testthat/css/mono_light-header_bg.css

 th, td {
   padding: 5px;
 }
-.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+.remark-slide table:not(.table-unshaded) thead,
+.remark-slide table:not(.table-unshaded) tfoot,
+.remark-slide table:not(.table-unshaded) tr:nth-child(even) {
   background: #D3D7DE;
 }
 table.dataTable tbody {

tests/testthat/css/mono_light.css

 th, td {
   padding: 5px;
 }
-.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+.remark-slide table:not(.table-unshaded) thead,
+.remark-slide table:not(.table-unshaded) tfoot,
+.remark-slide table:not(.table-unshaded) tr:nth-child(even) {
   background: #D3D7DE;
 }
 table.dataTable tbody {

tests/testthat/css/solarized_dark-header_bg.css

 th, td {
   padding: 5px;
 }
-.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+.remark-slide table:not(.table-unshaded) thead,
+.remark-slide table:not(.table-unshaded) tfoot,
+.remark-slide table:not(.table-unshaded) tr:nth-child(even) {
   background: #073642;
 }
 table.dataTable tbody {

tests/testthat/css/solarized_dark.css

 th, td {
   padding: 5px;
 }
-.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+.remark-slide table:not(.table-unshaded) thead,
+.remark-slide table:not(.table-unshaded) tfoot,
+.remark-slide table:not(.table-unshaded) tr:nth-child(even) {
   background: #073642;
 }
 table.dataTable tbody {

tests/testthat/css/solarized_light.css

 th, td {
   padding: 5px;
 }
-.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+.remark-slide table:not(.table-unshaded) thead,
+.remark-slide table:not(.table-unshaded) tfoot,
+.remark-slide table:not(.table-unshaded) tr:nth-child(even) {
   background: #eee8d5;
 }
 table.dataTable tbody {

tests/testthat/css/xaringan.css

 th, td {
   padding: 5px;
 }
-.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+.remark-slide table:not(.table-unshaded) thead,
+.remark-slide table:not(.table-unshaded) tfoot,
+.remark-slide table:not(.table-unshaded) tr:nth-child(even) {
   background: #eee;
 }
 table.dataTable tbody {