Canvas Resize

[AncientOfDays]

I don't know what I did but the Resize Canvas tool box display has changed.
Before it displayed the new canvas color as transparent.
Now the color box shows black, which I can change to any thing but transparent, which is what I want.
I've looked all over for a setting that I might have changed accidently but no luck.
It seems that there is nothing to directly change the Resize Canvas tool box display.
Can any one shed some light on this problem?

[AncientOfDays]

Again I don't know what I did but Resize Canvas is back to normal.
Starting off with no color or transparent is easier than trying to remove a color that has been applied.

[LeviFiction]

Canvas Size can only use transparency on images that support transparency on the bottom most layer. If you have a background layer, these don't support transparency, then Canvas Size will force you to choose a color. So I'm guessing when you tried it before you had either just opened an image or had Flattened an image creating a background layer. Then at some point you promoted the background layer and now you can use the transparent option in Canvas Size.

[AncientOfDays]

Thank you. I tried it and you are correct.
I have always promoted my background layers to raster's but kind of got out of the habit.

[ehume]

I forgot what version of PSP you are using. PSP 2018 has a box that shows you what color the extension will be. This replicates the Background in the Materials palette. This has been there since PSPx4 (I checked). If you put your cursor on it you will note that it changes to a dropper. If you then click on the square you will be able to change the color. If you change the background color while doing general editing then go to Canvas Size if it expands it will show the background color in the expanded areas. Your choice of colors.