Time: 12:00 AM 9/16 Japan Standard Time
Frequency: Always
World name: Tonberry
Character name: Azullo Winterclaw
NPC name: n/a
Monster name: n/a
Class/Level: n/a
Party or solo: n/a
In-game time: any time
Area and coordinates: anywhere with access to a summoning bell
Steps:
1. Talk to retainer and open the retainer's inventory to put in or remove items.
2. Select any item on a tab other than the top left tab (expanded inventory).
3. If the item in that slot on the first tab has a dye icon in the top right corner, that icon will be displayed on the item you have selected, even if it's an item impossible to dye. The same thing happens with items selected in tabs 6 and 7 showing dye colors from items in tab 5.
<*Add more steps if necessary>
In this image, I've selected some cotton yarn. It has a green dye icon in the upper right corner, the same as on the shirt (which has been dyed green) in the same slot of tab 1:


In this image, I have some elm lumber selected. It's in the second row, fourth column. The item in this slot in tab 1 is not dyed, so no dye icon shows up here:


The same thing happens with pink gear as well. As you can see, this rosewood lumber shows the same circle in the top right corner of its icon as the undyed(but dye-able) pink boots in the same slot of tab 1:


PC Specs
-=-=-=-=-=-=- System Information -=-=-=-=-=-=-

SYSTEM_OS Windows 8.1 64-bit (6.2, Build 9200) (9600.winblue_gdr.140330-1035)
SYSTEM_CPU Intel(R) Core(TM) i5-4670 CPU @ 3.40GHz (4 CPUs), ~3.4GHz
SYSTEM_CORE_NUM SYSTEM_CORE_LOGIC 4 SYSTEM_CORE_PHYSICS 4
SYSTEM_BIOS BIOS Date: 01/17/14 10:55:00 Ver: 04.06.05
SYSTEM_LANGUAGE English (Regional Setting: English)
SYSTEM_MEMORY 3982.926MB
SYSTEM_VIRTUAL_MEMORY 2047.875MB
SYSTEM_PAGE_FILE 5070.926MB
SYSTEM_STORAGE C:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 2047.657GB SYSTEM_FREEDISC_SPACE 1911.821GB
SYSTEM_STORAGE D:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 0.098GB SYSTEM_FREEDISC_SPACE 0.068GB
SYSTEM_STORAGE E:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 465.752GB SYSTEM_FREEDISC_SPACE 117.180GB
SYSTEM_STORAGE G:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 931.413GB SYSTEM_FREEDISC_SPACE 288.458GB
SYSTEM_DIRECTX_VERSION DirectX 11
SYSTEM_GRAPHICS NVIDIA GeForce GTX 650 Ti
SYSTEM_GRAPHICS_DEVICE \\.\DISPLAY1
SYSTEM_GRAPHICS_CHIP GeForce GTX 650 Ti
SYSTEM_GRAPHICS_MAKER NVIDIA
SYSTEM_GRAPHICS_VRAM 965.684 MB
SYSTEM_GRAPHICS_SHARED_VRAM 1991.463 MB
SYSTEM_GRAPHICS_DAC Integrated RAMDAC
SYSTEM_GRAPHICS_DISPLAY_MODE 1920 x 1080 (32 bit) (59Hz)
SYSTEM_GRAPHICS_DRIVER nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
SYSTEM_GRAPHICS_DRIVER_VERSION 9.18.0013.4052
SYSTEM_GRAPHICS_DRIVER_DATE 7/3/2014 5:48:32 AM
SYSTEM_GRAPHICS_DRIVER_LANGUAGE English
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER 3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE SYSTEM_SUPPORT
SYSTEM_SOUND スピーカー (ASUS Xonar D2X Audio Device)
SYSTEM_SOUND_DEVICE_ID {B449A1A6-C89F-4FDA-8364-72AC44426E8E}
SYSTEM_SOUND_DEVICE_NAME cmudaxp.sys
SYSTEM_SOUND_DRIVER_VERSION 5.12.0001.0008
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 12/11/2013 11:09:46 AM
SYSTEM_SOUND スピーカー (ASUS Xonar D2X Converter)
SYSTEM_SOUND_DEVICE_ID {1A863A66-E0BA-4D1D-92C0-EED8CEEDB91D}
SYSTEM_SOUND_DEVICE_NAME cmudaxp.sys
SYSTEM_SOUND_DRIVER_VERSION 5.12.0001.0008
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 12/11/2013 11:09:46 AM
SYSTEM_SOUND デジタル オーディオ (S/PDIF) (High Definition Audio デバイス)
SYSTEM_SOUND_DEVICE_ID {9D1EEDEE-2070-4B2C-BC16-52B4A69E0586}
SYSTEM_SOUND_DEVICE_NAME HdAudio.sys
SYSTEM_SOUND_DRIVER_VERSION 6.03.9600.16384
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 8/22/2013 8:38:21 PM
SYSTEM_SOUND デジタル オーディオ (S/PDIF) (High Definition Audio デバイス)
SYSTEM_SOUND_DEVICE_ID {9DD93F0A-C74F-48D3-88F6-F35844615F6B}
SYSTEM_SOUND_DEVICE_NAME HdAudio.sys
SYSTEM_SOUND_DRIVER_VERSION 6.03.9600.16384
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 8/22/2013 8:38:21 PM
SYSTEM_SOUND S/PDIF Pass-through Device (ASUS Xonar D2X Audio Device)
SYSTEM_SOUND_DEVICE_ID {E98504E2-D975-4A0F-B910-9E92CCC871B6}
SYSTEM_SOUND_DEVICE_NAME cmudaxp.sys
SYSTEM_SOUND_DRIVER_VERSION 5.12.0001.0008
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 12/11/2013 11:09:46 AM
SYSTEM_INPUT {6F1D2B60-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Mouse
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 3 SYSTEM_GAMEPAD_BUTTON 5 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {6F1D2B61-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Keyboard
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 109 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {B3490260-1E79-11E4-8001444553540000}
SYSTEM_INPUT_NAME USB Joystick
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 5 SYSTEM_GAMEPAD_BUTTON 12 SYSTEM_GAMEPAD_FOV 1
SYSTEM_INPUT {080C1A90-6191-11E3-8001444553540000}
SYSTEM_INPUT_NAME Controller (Wireless Gamepad F710)
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 5 SYSTEM_GAMEPAD_BUTTON 10 SYSTEM_GAMEPAD_FOV 1
SYSTEM_INPUT {B1121420-618A-11E3-8001444553540000}
SYSTEM_INPUT_NAME Microsoft Hardware USB Wireless Mouse
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 1 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0