do not color predominantly white/black rows

classes/feeds.php

@@ -407,13 +407,22 @@ class Feeds extends Handler_Protected {
 				require_once "colors.php";
 
 				if ($fav_color) {
-					if (!isset($rgba_cache[$feed_id]))
+					if (!isset($rgba_cache[$feed_id])) {
-						$rgba_cache[$feed_id] = join(",", _color_unpack($fav_color));
+						$hsl = rgb2hsl(_color_unpack($fav_color));
+
+						if ($hsl[1] < 0.1)
+							$hsl[2] = 1;
+						else if ($hsl[2] < 0.25)
+							$hsl[2] = 0.25;
+
+						$rgba_cache[$feed_id] = join(",", hsl2rgb($hsl));
+
+					}
 
 					$rgba = $rgba_cache[$feed_id];
 
 					// W3C definition seems to work in FF and Chrome
-					$row_background = "background-image : linear-gradient(to right, rgba(255, 255, 255, 0) 50%, rgba($rgba, 0.2) 100%);";
+					$row_background = "background-image : linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba($rgba, 0.3) 100%);";
 
 					/* $row_background = "background-image : -moz-linear-gradient(left, rgba(255, 255, 255, 0) 50%, rgba($rgba, 0.2) 100%);".
 						"background-image : linear-gradient(to right, rgba(255, 255, 255, 0) 50%, rgba($rgba, 0.2) 100%);";