GUI_SEGGERLIBRARY problem

Hello

I am driving a TFT screen with SSD1963 and anXMC4500 1MB, 160K device.

I have used GUI_SEGGERLIBRARY app to initialize the display.
I am having a lot of trouble using it.
1. Seemingly simple task of displaying transparent text is quite difficult.
GUI_TM_TRANS will not erase changing background text.
2. What is Read mode in the app?
If I enable it, and allot the default 4096 RAM , and execute , I get a trap signal for VADC.
Is 160k RAM insufficient?
3. If I need to enable transparent text, I need to use Windows management.
But it creates an annoying flicker.

Pls someone reply.
I will be elaborate in explaining.