Changes
/* MO6 and TO8 */
'''* d) BIT MODE MAP 16 :''' 160x200x16
*'''further Extra Video modes :''' Those Thomson computers also had a few extra obscure video modes that enabled transparency-masked plans (but with less colours than the usual CPC-like bitmap modes) and which could be used for video incrustation. Another mode enabled to manage 2 separate pages (screen) at the same time.
'''* e) Mode page (page1/page2) :''' this enable to provides 2 separate screen pages in 320x200x2.
'''* f) Overprinting Mode :''' 320x200 sized Two 1bit per pixel plans on the same screen, in 320x200.
* 2nd plan is 1 colour+transparency on the 1st plan
* 1st plan is 2 colours (possible 3 colours on screen+border)
