132 Graphics In addition to displaying coloured letters it is possible in MODE 7 to do a certain amount of work with graphics. The graphics available in Teletext mode are more complicated to use than in other modes but with a little patience very good effects can be achieved. An additional set of control codes are used to change lower case letters into small graphic shapes. The shapes are all based on a two by three grid, the same total size as a large letter. If you want to use those graphic shapes instead of lower case letters then they must be preceded with one of the following control codes:
145 Red graphics 146 Green graphics 147 Yellow graphics 148 Blue graphics 149 Magenta graphics 150 Cyan graphics 151 White graphics Note that upper case letters will still show as letters in the same colour that you have selected for the graphics. Thus 10 PRINT CHR$(145);"ABCdefGHIjkl" will show the following on the screen in red. (The full list of graphics shapes is given in Appendix B.)