Open Source Software Project Needs a Logo Design + Colors

C'est ce que refineT or maybe simply rT recherchait dans leur logo design

I need a logo design for an open source software project in the IT business (software testing & quality assurance). The name of the project is "refineT" which stands for "Testing refined". The name should be an optional part of the logo (so I need one version with name and one without).

The goal of this project is to write a new test software which has two major characteristics:
- being simple and a joy to use
- go back to the roots and simplify testing concepts

Both aspects should somehow be reflected in the logo.

The logo should be well recognizable in 48px size.

In addition to the logo I need a matching color scheme. In the attached screenshot you can see my self designed color scheme. This can be used/enhanced or completely revised. The following colors need to be designed
- Button color for "navigation" buttons (Ex: Button "Test list" in the third screenshot in the pdf)
- Button color for "action" buttons (All the brown button… Voir plus