Can I publish and distribute a custom version?

[equinusocio]

As you should know, this product is distributed under the APACHE 2.0 license. This license allows redistribution but there are some limitations you need to respect to be compliant with the license terms and conditions.

[equinusocio]

Highlights

Section 4

Note

(b) You must cause any modified files to carry prominent notices stating that You changed the files;

This means that when you redistribute the project, for example when you publish your version of the extension on the marketplace or other channels, you have to insert in ANY changed files a statement indicating you changed that file with, if possible, a reference/link to the original, file.

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Note

(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works;

You have to add the copyright notice and references of the original author in any distributed file.

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Section 6

Note

Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.

You must change the name of your redistributed product/code since Material Theme is the name of the original product.

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Section 8

Note

Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.

You can't then produce damage in any form to this software or the authors behind it. By publishing another copy on the marketplace you're basically making damage to our financial contributors who pay to maintain this product, keep quality, and keep it free for everyone. You also damage the authors who get paid to maintain this product since publishing clones makes users confused and misleads the attention away from the original product.

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We encourage you to open discussion, ask for help or open issues before redistributing this product. This is the basic of open-source, collaboration, not stealing.