replace lane button background image with linear gradient

public_html/css/hpr.css

@@ -349,7 +349,7 @@ article > p,
       2px 4px 4px var(--shadow-cards);
 	transition: 0.3s;
 	flex: 1 0 100%;
-	overflow: auto;
+	overflow-x: scroll;
 	padding-bottom: 1rem;
 }
 .lane > article:hover,
@@ -411,8 +411,7 @@ a.lane-button {
 	border-style: solid;
 	border-radius: 10px;
 	text-align: center;
-	background-image: url("../images/lane-button-background.png");
-
+	background: linear-gradient(to bottom, #a9d9db, #d6f0f1);
 }
 a.lane-button p {
 	font-family: var(--lane-button-font-family);
@@ -841,39 +840,3 @@ fieldset > table td input[type="radio"] {
 		max-width: 30%;
 	}
 }
-@media (prefers-color-scheme: dark) {
-	:root {
-		--link-primary: #bbdfe7;
-		--link-header-hover: #b54c08; /* original --link-primary-hover */;
-		--link-primary-hover: var(--link-secondary-hover);
-		--background-primary: #4d4d4d; /* HPR Grey */
-		--text-primary: #dfdfdf /*#fffff7#fafafa#fbfbee #dfdfdf */;
-		--banner-text-primary: #b6b6b6; 
-		--shadow-secondary-color: hsl(0, 0%, 40%);
-		--input-border-primary: var(--shadow-secondary-color);
-		--lane-button-color: #d5e6ea;	
-	}
-	body > header {
-		background-image: url("/images/main-header-background-dark.png");
-		background-color: #22545a;
-	}	
-	img {
-		filter: brightness(0.70);
-	}
-	a.lane-button {
-		background-image: url("/images/lane-button-background-dark.png");
-		color: var(--lane-button-color);
-	}
-	a.lane-button img {
-		filter: none;
-	}
-	.lane > article > header {
-		color: var(--text-secondary);
-	}
-	#title a:hover {
-		color: var(--link-header-hover);
-	}
-	#hosts td:nth-child(-n+2) {
-		color: var(--text-primary);
-	}
-}