GIMP Plugin Registry

Creating XHTML source and cascading stylesheet from any Layer of the image. Supported features:

• Default font
• Background color, font color and link color
• clipping
• visibilty and opacity
• z-index and name
• position, width and height
• Text layers and text styles (requires Gimp 2.5.x or higher)

Presented by area42 - Agentur & Systempartner

Download, screenshot and more information at  read more »

This plug-in changes colors in an image based on the HSV difference between two colors. This is particularly useful for applying color themes to existing images.

It avoids burning out high saturation and value at the expense of compression them somewhat when the difference goes towards higher saturation and value.

Current bugs/missing features include:

Undo does not work.
It can't be used on indexed images, even though it would frequently have enough colors.  read more »

Save for Web allows to find compromise between minimal file size and acceptable quality of image quickly. While adjusting various settings, you may explore how image quality and file size change. Options to reduce file size of an image include setting compression quality, number or colors, resizing, cropping, Exif information removal, etc.