It's not listed there:
https://www.geany.org/download/themes/
I think it's a good light theme and I want to create my own light theme based on it.
It's part of the filetypes.common file:
https://github.com/geany/geany/blob/2e8456a00fffc00a128a184c4b5a966848a0b4d0...
The Alt theme is here:
https://github.com/geany/geany/tree/master/data/colorschemes
Closed #4169 as completed.
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