Gerillass 3.0.0 is out. One gradient mixin replaces two, and text-gradient takes its colours first, so read the migration guide before you upgrade.
Gerillass
v3.0.0Something is broken
Open an issue. A compiled example is worth more than a description: the Sass you wrote, the CSS you got, and the CSS you expected.
Worth checking first: the version you have installed against the changelog. Version 2.0.0 renamed every utility function and replaced two mixins with one, and Installation has the details under Coming from Gerillass 1.x.
A question, or an idea
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Gerillass is maintained by one person and is free under the Apache License.