diff --git a/BK7231Flasher/OBKConfig.cs b/BK7231Flasher/OBKConfig.cs
index 44ba773..614384c 100644
--- a/BK7231Flasher/OBKConfig.cs
+++ b/BK7231Flasher/OBKConfig.cs
@@ -545,20 +545,20 @@ public static bool isValid(byte [] raw, int extraOfs = 0)
             byte crc = 0;
             if (raw[extraOfs+0] != (byte)'C' || raw[extraOfs + 1] != (byte)'F' || raw[extraOfs + 2] != (byte)'G')
             {
-                FormMain.Singleton.addLog("It's not an OBK config, header is bad"+Environment.NewLine, System.Drawing.Color.Yellow);
+                FormMain.Singleton.addLog("It's not an OBK config, header is bad"+Environment.NewLine, System.Drawing.Color.Purple);
                 return false;
             }
             int version = BitConverter.ToInt32(raw, extraOfs + 4);
             if(version > 100)
             {
-                FormMain.Singleton.addLog("OBK config has wrong version? Skipping" + Environment.NewLine, System.Drawing.Color.Yellow);
+                FormMain.Singleton.addLog("OBK config has wrong version? Skipping" + Environment.NewLine, System.Drawing.Color.Purple);
                 return false;
             }
             int useLen = getLenForVersion(version);
             crc = CRC.Tiny_CRC8(raw, extraOfs + 4, useLen - 4);
             if(raw[extraOfs + 3] != crc)
             {
-                FormMain.Singleton.addLog("OBK config has wrong checksum? Skipping" + Environment.NewLine, System.Drawing.Color.Yellow);
+                FormMain.Singleton.addLog("OBK config has wrong checksum? Skipping" + Environment.NewLine, System.Drawing.Color.Purple);
                 return false;
             }
             return true;
diff --git a/BK7231Flasher/TuyaConfig.cs b/BK7231Flasher/TuyaConfig.cs
index 0e54ccd..6402ce7 100644
--- a/BK7231Flasher/TuyaConfig.cs
+++ b/BK7231Flasher/TuyaConfig.cs
@@ -171,16 +171,16 @@ public bool fromBytes(byte[] data)
             int needle = MiscUtils.indexOf(data, MAGIC_CONFIG_START);
             if(needle < 0)
             {
-                FormMain.Singleton.addLog("Failed to extract Tuya keys - magic constant header not found in binary" + Environment.NewLine, System.Drawing.Color.Yellow);
+                FormMain.Singleton.addLog("Failed to extract Tuya keys - magic constant header not found in binary" + Environment.NewLine, System.Drawing.Color.Purple);
 
                 if (MiscUtils.isFullOf(data, 0xff))
                 {
-                    FormMain.Singleton.addLog("It seems that dragged binary is full of 0xff, someone must have erased the flash" + Environment.NewLine, System.Drawing.Color.Yellow);
+                    FormMain.Singleton.addLog("It seems that dragged binary is full of 0xff, someone must have erased the flash" + Environment.NewLine, System.Drawing.Color.Purple);
                     bGivenBinaryIsFullOf0xff = true;
                 }
                 if(data.Length>3 && data[0] == (byte)'C' && data[1] == (byte)'F' && data[2] == (byte)'G')
                 {
-                    FormMain.Singleton.addLog("It seems that dragged binary is OBK config, not a Tuya one" + Environment.NewLine, System.Drawing.Color.Yellow);
+                    FormMain.Singleton.addLog("It seems that dragged binary is OBK config, not a Tuya one" + Environment.NewLine, System.Drawing.Color.Purple);
                     this.bLastBinaryOBKConfig = true;
                 }
                 return true;
@@ -199,14 +199,14 @@ public bool fromBytes(byte[] data)
                 UInt32 mag = br.ReadUInt32();
                 if (mag != MAGIC_FIRST_BLOCK)
                 {
-                    FormMain.Singleton.addLog("Failed to extract Tuya keys - bad firstblock header" + Environment.NewLine, System.Drawing.Color.Yellow);
+                    FormMain.Singleton.addLog("Failed to extract Tuya keys - bad firstblock header" + Environment.NewLine, System.Drawing.Color.Purple);
                     return true;
                 }
                 uint crc = br.ReadUInt32();
                 key = br.ReadBytes(16);
                 if (checkCRC(crc, key, 0, key.Length) == false)
                 {
-                    FormMain.Singleton.addLog("Failed to extract Tuya keys - bad firstblock crc" + Environment.NewLine, System.Drawing.Color.Yellow);
+                    FormMain.Singleton.addLog("Failed to extract Tuya keys - bad firstblock crc" + Environment.NewLine, System.Drawing.Color.Purple);
                     return true;
                 }
                 key = makeSecondaryKey(key);
@@ -225,17 +225,17 @@ public bool fromBytes(byte[] data)
                     if (mag != MAGIC_NEXT_BLOCK && mag != 324478635)
                     {
                         // it seems that TuyaOS3 binaries have here 324478635?
-                        //FormMain.Singleton.addLog("Failed to extract Tuya keys - bad nextblock header" + Environment.NewLine, System.Drawing.Color.Yellow);
+                        //FormMain.Singleton.addLog("Failed to extract Tuya keys - bad nextblock header" + Environment.NewLine, System.Drawing.Color.Purple);
                         //return true;
-                        FormMain.Singleton.addLog("WARNING - strange nextblock header " + mag.ToString("X4") + Environment.NewLine, System.Drawing.Color.Yellow);
+                        FormMain.Singleton.addLog("WARNING - strange nextblock header " + mag.ToString("X4") + Environment.NewLine, System.Drawing.Color.Purple);
 
                     }
                     uint crc = br.ReadUInt32();
                     if (checkCRC(crc, next, 8, next.Length - 8) == false)
                     {
-                        FormMain.Singleton.addLog("WARNING - bad nextblock CRC" + Environment.NewLine, System.Drawing.Color.Yellow);
+                        FormMain.Singleton.addLog("WARNING - bad nextblock CRC" + Environment.NewLine, System.Drawing.Color.Purple);
 
-                        //   FormMain.Singleton.addLog("Failed to extract Tuya keys - bad nextblock CRC" + Environment.NewLine, System.Drawing.Color.Yellow);
+                        //   FormMain.Singleton.addLog("Failed to extract Tuya keys - bad nextblock CRC" + Environment.NewLine, System.Drawing.Color.Purple);
                         //  return true;
                     }
                     bw.Write(next, 8, next.Length - 8);
@@ -785,7 +785,7 @@ public bool extractKeys()
             int stopAT = MiscUtils.findMatching(descryptedRaw, (byte)'}', (byte)'{', first_at);
             if (stopAT == -1)
             {
-                //FormMain.Singleton.addLog("Failed to extract Tuya keys - no json end found" + Environment.NewLine, System.Drawing.Color.Yellow);
+                //FormMain.Singleton.addLog("Failed to extract Tuya keys - no json end found" + Environment.NewLine, System.Drawing.Color.Purple);
                 // return true;
                 stopAT = descryptedRaw.Length;
             }