I want to replace picture Monitor of System Properties (press key Win+Pause to view it, it is above and not OEM logo). I use Reshack to extract this picture Monitor in a file sysdm.cpl and save with a name is monitor.bmp and view it by Ifanview. I note background color of monitor.bmp is white but when view it in System Properties, background color is the same the taskpanel color (I use a theme with taskpanel color is black ,so background color of Monitor is same black (not white)). I modify sysdm.cpl by replace picture Monitor with my picture created (have background color is white) and use modified sysdm.cpl replace orginal sysdm.cpl of Windows. But when I view it in System Properties, background color (of the picture I created) is still white, it hasn't color like color of my theme. Why? How to create BMP in this case?

This is a picture:

create a new alpha layer and save the image as 32bits bmp, you should find many tutorials and more info searching the net

welcome mate!

Sorry, my English is very poor. Please help me with keyword to search.

http://steammachine.com/trainz/artfiles/ this page has nothing to do with your purpose BUT it explains how to create an image with an alpha layer and save it as 32bits.

I use Photoshop CS to open original BMP (monitor.bmp), there are four channels in Channel tab of Photoshop include: RGB, Red, Green, Blue, Alpha 1. I try save this BMP (a new copy) with options:
+ Format: BMP, Save Alpha Channel.
+ OS: Windows
+ Resolution: 32bit RGBA
+ Name: temp.bmp.
I use Rehack to replace original BMP with temp.bmp but get a message error:

Please help me using which options?

how to create shadow border?
Please tell me any graphic softwares to make this.
I am using Photoshop CS but don't know to use which filter?