Higher RAM usage with empty screen than with widgets

General discussion
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2

Hi Steven,

Could you share the custom malloc function implemented?

I strongly recommend check this thread about ESP32+PSRAM.

In resume you need to allocate the draw buffer in PSRAM.

SPIRAM_USE_MALLOC

Include in your CMakeList.txt:

add_compile_definitions(CONFIG_LV_ATTRIBUTE_LARGE_RAM_ARRAY=EXT_RAM_BSS_ATTR)