I use GraphicsGale for most of my pixel art. Sometimes I can fill half an image with color 1 and the other half with color 2 and resample/resize the image to find color 1.5 midway between them. Sometimes the same process won't won't work. If I change a 4x4 image to 5x5, sometimes the new central column of pixels will change to the average of both colors and sometimes it will become either one or the other of the two. It seems to work with colors that are already close but not with high contrast colors, so light and dark orange will produce just plain orange, but orange plus white will not produce light orange.

GraphicsGale users, are you aware of a way to consistently produce midtones?

UPDATE:
Some additional experimentation shows that black WILL produce midtones in a resized image but pure white will not. But if the white is even one point off from pure it works again. Is this the case for everyone and is there a reason for this?


Edited by JustinGameDesign - 31 August 2014 at 7:56am

Haha, what a clever trick
I just gave it a shot, and my white + orange does produce light orange.

Always check that white is not set to be transparent (layer settings, frame settings should not matter), and that you are working in in 24bpp mode (full color) instead of 8bpp (indexed 256)

EDIT:
Of course the easier trick is to select both your colors (one left click, one right click) in the palette, and then open the palette menu and choose 'make gradation'. If they are 1 space away from each other there would be a 1 inbetween color!


Edited by Hapiel - 31 August 2014 at 2:08pm

There is a palette toolbar where you can edit colors, but I was looking for an automated alternative to manually editing the values.

Ah, I see it now. And somehow it grays out the option to made a gradation on certain colors. First set I tried was black and white and it wouldn't let me. Then I tried cyan and black and it worked. Maybe I just have a bad install, because the transparent color was gray--not black or white.