An enumeration specifying the weight (boldness) of a font. This is a numerical value ranging from 100 to 900, but there are some predefined values:
Value | Symbolic name | Description |
| 200 | Pango::WEIGHT_ULTRALIGHT | The ultralight weight |
| 300 | Pango::WEIGHT_LIGHT | The light weight |
| 400 | Pango::WEIGHT_NORMAL | The default weight |
| 600 | Pango::WEIGHT_SEMIBOLD | A weight intermediate between normal and bold |
| 700 | Pango::WEIGHT_BOLD | The bold weight |
| 800 | Pango::WEIGHT_ULTRABOLD | The ultrabold weight |
| 900 | Pango::WEIGHT_HEAVY | The heavy weight |