Eclipse IDE How to change Dark Theme STM32CubeIDE How to change Dark Theme STM32CubeIDE dark mode preprocessor highlighting bug STM32Cube – dark color mode STM32CubeIDE Dark color and Font theme STM32F4 STMF32F1 Embedded software Summary : 1) General – Preferences – Editors – Text Editors – Annotations – C/C++ Occurrences OR 2) General – Appearance -Colors and Fonts, try C/C++ – Editor. In Appearance color options choose Inactive code highlight on the list and select a color of your choice. Or just untick Highlight inactive code on General Behavior form above.