User Buttons are 71x30 pixels wide.
The button border takes 1 pixel.
Inside this button border, there is a 1 pixel spacing.
This leaves a maximum unscaled image size of 67x26 pixels.
If you choose an image that exceeds these sizes, the image will be scaled, constraining its proportions.
The image will be saved in the Macro file at a maximum size of 67x26 pixels.
This is the size of the scaled image if you don't write any Button Text.
If you write some Button Text, only the top half of the button area will be dedicated to the image.
This leaves a maximum unscaled image size of 67x12 pixels.
If your image exceeds these sizes, the image will be downscaled again, constraining its proportions.
Supported image formats:
"*.PNG"
"*.BMP"
"*.GIF"
"*.JPG" "*.JPEG" "*.JPE"
"*.TIF" "*.TIFF"
Alpha channel IS supported and will be honored by DTouch.