dox: make doxygen manual green (using color from logo)

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@61940 15284696-431f-4ddb-bdfa-cd5b030d7da7

include/Make/Doxyfile_arch_html.in

@@ -957,7 +957,7 @@ HTML_EXTRA_FILES       =
 # 180 is cyan, 240 is blue, 300 purple, and 360 is red again.
 # The allowed range is 0 to 359.
 
-HTML_COLORSTYLE_HUE    = 220
+HTML_COLORSTYLE_HUE    = 120
 
 # The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of
 # the colors in the HTML output. For a value of 0 the output will use
@@ -972,7 +972,7 @@ HTML_COLORSTYLE_SAT    = 100
 # so 80 represents a gamma of 0.8, The value 220 represents a gamma of 2.2,
 # and 100 does not change the gamma.
 
-HTML_COLORSTYLE_GAMMA  = 80
+HTML_COLORSTYLE_GAMMA  = 56
 
 # If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
 # page will contain the date and time when the page was generated. Setting