<p>One of the key tools in GIMP is Layer Masks, which allow you to make selected parts of a layer transparent, so that lower layers can come through. This is a way to get the same kinds of effects you would get with physical transparency sheets or animation gels.</p>
<h3 id="links">Links:</h3>
<ul>
<li><a href="https://docs.gimp.org/2.10/en/" class="uri">https://docs.gimp.org/2.10/en/</a></li>
<li><a href="https://en.wikipedia.org/wiki/Wikipedia:Public_domain_image_resources" class="uri">https://en.wikipedia.org/wiki/Wikipedia:Public_domain_image_resources</a></li>
<li><a href="https://snappygoat.com/" class="uri">https://snappygoat.com/</a></li>
<li><a href="https://snappygoat.com/s/?q=flowerscloseup#eda72d0e7eedc238eed8f7acffc515dba94ce64c,1,342" class="uri">https://snappygoat.com/s/?q=flowerscloseup#eda72d0e7eedc238eed8f7acffc515dba94ce64c,1,342</a></li>
<li><a href="https://www.gimp.org/docs/userfaq.html#when-will-gimp-support-any-kind-of-non-destructive-editing-like-adjustment-layers-layer-filters-andor-full-blown-node-based-editing" class="uri">https://www.gimp.org/docs/userfaq.html#when-will-gimp-support-any-kind-of-non-destructive-editing-like-adjustment-layers-layer-filters-andor-full-blown-node-based-editing</a></li>
<li><a href="https://www.ahuka.com/gimp/layer-masks/" class="uri">https://www.ahuka.com/gimp/layer-masks/</a></li>
</ul>
