diff --git a/phpBB/styles/prosilver/theme/colours.css b/phpBB/styles/prosilver/theme/colours.css
index 9113f000b1..5c2b996f17 100644
--- a/phpBB/styles/prosilver/theme/colours.css
+++ b/phpBB/styles/prosilver/theme/colours.css
@@ -1190,7 +1190,7 @@ label {
 }
 
 option.disabled-option {
-	color: graytext;
+	color: #7f7f7f;
 }
 
 /* definition list layout for forms */
@@ -1261,62 +1261,6 @@ fieldset.quick-login input.inputbox {
 	color: transparent;
 }
 
-/* form button styles */
-
-a.button1,
-input.button1,
-input.button3,
-a.button2,
-input.button2 {
-	background-color: #efefef; /* old browsers */ /* ff3.6+ */
-	background-image: linear-gradient(to bottom, #d2d2d2 0%, #efefef 100%); /* w3c */
-	filter: progid:dximagetransform.microsoft.gradient(startcolorstr="#d2d2d2", endcolorstr="#efefef", gradienttype=0); /* ie6-9 */
-	color: #000000;
-}
-
-a.button1,
-input.button1 {
-	border-color: #666666;
-}
-
-input.button3 {
-	background-image: none;
-}
-
-/* alternative button */
-a.button2,
-input.button2,
-input.button3 {
-	border-color: #666666;
-}
-
-/* <a> button in the style of the form buttons */
-a.button1,
-a.button2 {
-	color: #000000;
-}
-
-/* hover states */
-a.button1:hover,
-input.button1:hover,
-a.button2:hover,
-input.button2:hover,
-input.button3:hover {
-	background-color: #d2d2d2; /* old browsers */ /* ff3.6+ */
-	background-image: linear-gradient(to bottom, #efefef 0%, #d2d2d2 100%); /* w3c */
-	filter: progid:dximagetransform.microsoft.gradient(startcolorstr="#efefef", endcolorstr="#d2d2d2", gradienttype=0); /* ie6-9 */
-	border-color: #d31141;
-	color: #d31141;
-}
-
-/* focus states */
-input.button1:focus,
-input.button2:focus,
-input.button3:focus {
-	border-color: #11a3ea;
-	color: #0f4987;
-}
-
 input.disabled {
 	color: #666666;
 }
diff --git a/phpBB/styles/prosilver/theme/forms.css b/phpBB/styles/prosilver/theme/forms.css
index 70ed28543d..8b69ac9168 100644
--- a/phpBB/styles/prosilver/theme/forms.css
+++ b/phpBB/styles/prosilver/theme/forms.css
@@ -344,41 +344,6 @@ input[type="search"]::-webkit-search-cancel-button {
 	cursor: pointer;
 }
 
-/* Form button styles
----------------------------------------- */
-input.button1,
-input.button2 {
-	font-size: 1em;
-}
-
-a.button1,
-input.button1,
-input.button3,
-a.button2,
-input.button2 {
-	font-family: "Lucida Grande", Verdana, Helvetica, Arial, sans-serif;
-	line-height: 1.5;
-	background: transparent none repeat-x top left;
-	width: auto !important;
-	padding-top: 1px;
-	padding-bottom: 1px;
-}
-
-a.button1,
-input.button1 {
-	font-weight: bold;
-	border: 1px solid transparent;
-}
-
-input.button3 {
-	font-variant: small-caps;
-	line-height: 5px;
-	background-image: none;
-	height: 12px;
-	margin: 0;
-	padding: 0;
-}
-
 input[type="button"],
 input[type="submit"],
 input[type="reset"],