carol.gimp.org GIMP2 basics Preferences Display

Transparency and Monitor Resolution. Chances are fairly good that the Image Window Appearance preference menu was too full of other options to hold the Transparency preferences located here.

Transparency

This preference sets what the image window looks like where the image is transparent.

Dark Large Checks Mid-Tone Large Checks Light Large Checks Dark Medium Checks (default) Mid-Tone Medium Checks Light Medium Checks

Dark Small Checks Mid-Tone Small Checks Light Small Checks Black only Gray only White only

Get Monitor Resolution

Pixels on a monitor are not always perfectly square. This can cause your images to look taller or wider than the pixels numbers are telling you.

The way gimp displays pixels can be calibrated so that your images look the same as the numbers tell you it should.

To be honest, I have worked with gimp now for a year and a half or so and not calibrated the display. You can see that square images are not displaying square. Crap, where I am living now there is not even a ruler you can sanely measure it with. You can always trust the numbers....

From windowing system

This is the default action. I don't know where gimp gets this information from ...

Manually

I had a monitor in which I knew the resolution for, if you are like this, you can manually enter the numbers into this location

Calibrate Push the Calibrate button. Use a ruler. Determine how long and wide the rules are in your display and enter your findings into the dialog in the calibration dialog.