diff --git a/oepl-definitions.h b/oepl-definitions.h
index a86cc9244..70ef8c0d7 100755
--- a/oepl-definitions.h
+++ b/oepl-definitions.h
@@ -57,6 +57,7 @@
 #define CMD_DO_RESET_SETTINGS 2
 #define CMD_DO_DEEPSLEEP 3
 #define CMD_DO_LEDFLASH 4
+#define CMD_ERASE_EEPROM_IMAGES 5
 
 #define WAKEUP_REASON_TIMED 0
 #define WAKEUP_REASON_GPIO 2
@@ -72,3 +73,18 @@
 #define EPD_LUT_FAST_NO_REDS 2
 #define EPD_LUT_FAST 3
 #define EPD_LUT_OTA 0x10
+
+// these are the 'custom image' arguments that will be sent in addition to their 'type'. 
+#define CUSTOM_IMAGE_NOCUSTOM 0x00         // regular image type
+#define CUSTOM_IMAGE_SPLASHSCREEN 0x01     // will show at first boot/powerup
+#define CUSTOM_IMAGE_LOST_CONNECTION 0x02  // this image will be shown (if it exists on the tag) if the tag looses its connection
+#define CUSTOM_IMAGE_APFOUND 0x03          // this image will be shown during bootup if an AP was found
+#define CUSTOM_IMAGE_NOAPFOUND 0x04        // shown if during bootup no AP was found
+#define CUSTOM_IMAGE_LONGTERMSLEEP 0x05     // shown if long term sleep is entered via command
+// UNUSED: 0x06-0x0F
+#define CUSTOM_IMAGE_SLIDESHOW 0x0F  // image is part of a slideshow
+#define CUSTOM_IMAGE_BUTTON1 0x10
+#define CUSTOM_IMAGE_BUTTON2 0x11
+// UNUSED: 0x12 to 0x1C
+#define CUSTOM_IMAGE_GPIO 0x1D
+#define CUSTOM_IMAGE_NFC_WAKE 0x1E
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diff --git a/oepl-proto.h b/oepl-proto.h
index 6ad159f2e..07d3bf65b 100755
--- a/oepl-proto.h
+++ b/oepl-proto.h
@@ -187,3 +187,9 @@ struct ledFlash {
     uint8_t repeats;
     uint8_t spare;
 } __packed;
+
+struct imageDataTypeArgStruct {
+    uint8_t lut : 2;
+    uint8_t preloadImage : 1;  // set to 0 will draw image immediately
+    uint8_t specialType : 5;
+} __packed;
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