diff --git a/README.md b/README.md
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+++ b/README.md
@@ -22,7 +22,9 @@ Color Tailor was inspired by an [iTunes feature](https://stackoverflow.com/q/136
 Chrome on Android does a [similar thing](https://developers.google.com/web/updates/2014/11/Support-for-theme-color-in-Chrome-39-for-Android) with the toolbar color, and there is an [open issue](https://bugzilla.mozilla.org/show_bug.cgi?id=1098544) to do the same for Firefox.
 
 ## Other Themes
+* [Chromatastic](https://addons.mozilla.org/en-US/firefox/addon/chromatastic/): continuously cycles through colors
 * [Containers Theme](https://addons.mozilla.org/en-US/firefox/addon/containers-theme/): changes the theme color to match the active [container tab](https://addons.mozilla.org/en-US/firefox/addon/multi-account-containers/)
+* [Picture Paint](https://addons.mozilla.org/en-US/firefox/addon/picture-paint/): changes the theme to match the color palette of the current National Geographic Photo of the Day
 * [Quantum Lights](https://addons.mozilla.org/en-US/firefox/addon/quantum-lights-dynamic/): Firefox Quantum palette-inspired theme that changes based on the time of day
 * [Gradientus](https://addons.mozilla.org/en-US/firefox/addon/gradientus/): also changes colors based on the time of day