TRichView.com

I used it to generate line, which has some parts in different format, for example:

(R : TCustomRichView)

with R do
begin
AddText ('This is ', RED_NORMAL_STYLE);
AddText ('VERY IMPORTANT NUMBER', BOLD_STYLE);
AddTextNL (' and here is the rest of sentence.', NORMAL_STYLE, 0,0);
end;

The effect ...