diff --git a/platformio.ini b/platformio.ini
index 87777068..ff2e4b23 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -107,6 +107,7 @@ neopixel_lib = adafruit/Adafruit NeoPixel@1.11.0
 gfx_display_libs =
 #  lvgl/lvgl@8.3.9
   bodmer/TFT_eSPI@^2.5.31
+  bitbank2/PNGdec@^1.0.1
   SPI
 
 gfx_display_build_flags =
@@ -131,7 +132,14 @@ gfx_display_build_flags =
   -D LOAD_FONT7
   -D LOAD_FONT8
   -D LOAD_GFXFF
-  -D SPI_FREQUENCY=15999999
+  -D SMOOTH_FONT
+#  -D SPI_FREQUENCY=15999999
+#  -D SPI_FREQUENCY=20000000
+#  -D SPI_FREQUENCY=27000000
+  -D SPI_FREQUENCY=40000000
+#  -D SPI_FREQUENCY=55000000
+#  -D SPI_FREQUENCY=65000000
+#  -D SPI_FREQUENCY=80000000
   -D SPI_READ_FREQUENCY=20000000
   -D SPI_TOUCH_FREQUENCY=600000
   -D ENABLE_SCREEN_LCD_TFT