No, I don't have plans for an Android version.However, I am planning to implement custom color palette support in a future update.
I have already purchased the tool; I see that you have a version 0.1.5 for Linux ARM, but you don't have the build for Linux x86?
Thank you for your purchase! I'll try to create a Linux x86 build, though I don't have a Linux x86 PC to test it on.