Working on skin again, I realized the issue with the languages.
The default aurora skin set the text fields to 0.5x scale, and had large font sizes (24pt instead of 12pt for example) to appear normal.
When creating the skin, I had un-done the 0.5x scale and decreased the font size in the areas now affected. The translations are specifying font point size based on the original aurora skin. So the 12pt fonts I used are reset to 24pt, and since I removed the 0.5x scalings, the translations cause the large font.
It will be a lot of rework to fix those and 0.5x makes fonts jaggier, so we will see.
Alternatively, someone can do a retranslate and use this skin in the tool to generate correct sized translations, but you'll have skin-specific translation and small fonts on other skins..