Thicken and Outline Font

[Ofnuts]

Bother thickening and outlining are the same process, you strike a line that straddles the edge, the difference being that thickeing is using the same color as the text while outlining is using a different color. Also if you outline, you have the choice between keeping the outline layer above the text (it straddles the edge) or under the text (so half of it sticks out).

In both cases:

• Layer > Text to path
  
• Add layer
  
• Edit > Stroke path in Line mode
  

(the often mentioned technique that uses Select > Grow can only produce round corners).