Hi @Thanh_Hoang ,
Welcome to Kustom forum.
In regards to your question it looks like caused by the display setting and/or the launcher setting, which disable a full screen display.
Try to check your phone’s setting and/or the launcher setting.
Other than that, if you created the KLCK preset, you can stretch the height (and the width) of an element to full-height & full-width, using $si(rheight)$ and $si(rwidth)$ .
I hope this would help.
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Yo,tks you so much,it work!
