Well, you can also simply pretend it’s ART …
TString channelLabel[nchannels] =
{
"#scale[1.0]{#font[12]{#color[2]{p}}}#scale[0.7]{#font[22]{#color[3]{o}}}#scale[1.3]{#font[32]{#color[4]{w}}}",
"#scale[1.0]{#font[42]{#color[5]{f}}}#scale[1.3]{#font[52]{#color[6]{l}}}#scale[0.7]{#font[62]{#color[7]{o}}}#scale[0.7]{#font[72]{#color[8]{w}}}#scale[1.3]{#font[82]{#color[9]{e}}}#scale[1.1]{#font[92]{#color[1]{r}}}",
"#scale[1.0]{#font[102]{#color[30]{p}}}#scale[1.2]{#font[112]{#color[34]{e}}}#scale[1.3]{#font[12]{#color[38]{t}}}",
"#scale[1.0]{#font[22]{#color[40]{c}}}#scale[0.7]{#font[32]{#color[41]{a}}}#scale[0.8]{#font[42]{#color[46]{r}}}",
"#scale[1.0]{#font[52]{#color[20]{b}}}#scale[1.3]{#font[62]{#color[28]{o}}}#scale[1.2]{#font[72]{#color[29]{t}}}#scale[0.8]{#font[82]{#color[16]{t}}}#scale[1.1]{#font[92]{#color[5]{l}}}#scale[0.8]{#font[102]{#color[4]{e}}}"
};