build: Fix some colored build issues

 * Fix some broken lines in definitions.mk
 * Finish adding colors to product-graph.mk

Change-Id: I235a60c967b1f10ec6dd1cac25740badbd3b64c9
Force colorsheme to SVG, since darkblue doesn't exist on X11

Change-Id: I1b9e13dd4ca63ba27a49a55d95130bdceb187669