How to remove material theme (or reset to defaults) from IntelliJ / PyCharm?

Question

I have installed Material Theme UI and it made my IDE blackish. Later I decided to remove and and removed plugin. Unfortunately, this didn\'t give default colors back, some part

Answer 1

1. Uninstall Material Theme UI plugin: Settings->Plugins
2. Delete colors from the config folder: C:\Users\User name\<.IdeaIC2018.2>\config\colors (don't remove the whole config folder because all the previous settings and tasks will be removed)
3. Delete material_theme file: C:\Users\User name\<.IdeaIC2018.2>\options\material_theme