We have a nice OpenType font we use with PowerPoint, but it seems OpenLP (as of the latest public alpha) does not support displaying it (it falls back to another default? font).
Would be nice.
Which operating system are you using? Which distribution (if Linux) or edition (if Windows)? Which version?
Currently on Win7 x64, using the latest build from bzr (as of yesterday). I see the font properly in the dropdown combobox, but not in the preview window or the actual display.
OpenLP doesn't use fonts directly, it defers rendering of them to the GUI toolkit we use, Qt.
I tested OpenType fonts on my Kubuntu Linux installation, and it seems to work fine. We've had other people using Windows mention this issue, so it may be a Qt/Windows issue. We'll investigate things further.