(MESS)thomson : improve accuracy of the colors [Antoine Mine]

git-svn-id: svn://dspnet.fr/mame/trunk@31953 749742ba-7341-0410-aadc-df50b521781e
more blending finetuning (nw)

git-svn-id: svn://dspnet.fr/mame/trunk@31954 749742ba-7341-0410-aadc-df50b521781e
more blending fixes (nw)

git-svn-id: svn://dspnet.fr/mame/trunk@31955 749742ba-7341-0410-aadc-df50b521781e
better understanding of the blending (nw)

git-svn-id: svn://dspnet.fr/mame/trunk@31956 749742ba-7341-0410-aadc-df50b521781e
new NOT WORKING
Jump Jump [system11]

needs the correct protection patches

git-svn-id: svn://dspnet.fr/mame/trunk@31957 749742ba-7341-0410-aadc-df50b521781e