From 4739dfa43289356759cef988ba1a05100c22aebc Mon Sep 17 00:00:00 2001
From: nebulon42 <nebulon42@mailbox.org>
Date: Sat, 19 Nov 2016 19:37:29 +0100
Subject: [PATCH] mention compound paths for icons

---
 CONTRIBUTING.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 3ab255e38b..8d4e0d2947 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -144,6 +144,7 @@ Because SQL within JSON or YAML will not generally be syntax highlighted, indent
 * Icons must use SVG fills only, not SVG strokes or any feature Mapnik does not support.
 * Use no color for the icon's fill if the icon is monochromatic. This allows the color to be set in the MSS.
 * Use a common canvas size, which is usually 14x14 px.
+* Convert shapes and other components to paths and merge them into a compound path.
 * Draw a simple siloutte of the subject with an "on the shelf" perspective.
 * Align vectors to the pixel grid.
 * Make a clean design, so reduced complexity where possible.