Icon transparent background

Mu online season 21 - grand opening

mir2pion

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I remember something about black transparency that involved specifying color in hex code, like fff something. Don't know if that is relevant here.

I have this grid icon for map editor (reusing the icon for Grid 2x2 BigTile) and I need it rotated 45 degrees for slanting grid menu icon. In IrfanView I opened the image rotation as in this picture and the black background color is as you see it there. I opened the color choosing panel and it seems there is nothing to do there that would be helpful.
The editor menu has slightly greyish background, not white (ControlLight from properties). I guess if you chose white background here and made that menu white, it would look better but as you see, the menu left margin where the icons display is some sort of grey too, so instead of hacking it, I am trying to figure out how to make the background black transparent. The icons are png type

1738516888127.png

1738516455167.png

There are also some transparency option when saving the rotated icon, not sure which should be checked or unchecked.
1738517130000.png

I also tried the tip in the image rotation panel at the bottom where it says 1) Click into the image to select background color.
That looks like OK compromise if I can't make the black transparent.
1738517807357.png
Somehow the icon also picked up some black that belongs to the icon, not the background. The original icon was downloaded from someplace and worked OK. Maybe I need to get some icon specific program?
 
Last edited:

Tai

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TLDR; you want the background removing from an image?

Please post the original.
 
Last edited:

mir2pion

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Grid icon
One is original to be rotated (as you see it in the Grid - BigTile menu), the other what I did with it for the slanting grid.

Shows the black background in compiled editor also
1738537838791.png