Interesting Linux Graphics Applications

I love working with graphics on my Linux machine and in looking for new tools I found a couple fairly nice Linux graphics applications that I have not seen before, along with a few I have. I hope they are useful to you as I find them to be nice additions to my graphic tool-sets. If you are curious about the other tools I use, here is an older setup post.

A Photo Tool LibreA Photo Tool (libre)A Photo Tool (libre) is an image editing app with lots of tools.
AvvieAvvieAvvie is a utility for quickly cropping images. Designed to be faster than the time it takes to locate the crop tool in GIMP.
beerefBeerefBeeref is a simple reference image viewer and organizer.
ConverterConverterConverter is simple and easy-to-use application for converting and manipulating images.
DiagramsDiagramsDiagrams is a team and standalone diagramming and flow charting tool.
DrawingDrawingDrawing is a basic raster image editor is similar to Microsoft Paint, but aiming at the GNOME desktop.
drawpileDrawpileDrawpile is a collaborative drawing program that allows multiple users to sketch on the same canvas simultaneously.
enveEnveEnve is used to create vector animations, raster animations, and can include sound and video files.
EyedropperEyedropperEyedropper allows you to easily pick and format colors.
FosStrangulatorFOSStriangulatorFOSStriangulator is a tool for making triangulated illustrations out of photos.
IdentityIdentityIdentity is a program for comparing multiple versions of an image or video.
ikonaiKonaiKona is an icon preview utility designed for KDE Plasma.
KontrastKontrastKontrast is a color contrast checker and tells you if your color combinations are distinct enough to be readable and accessible.
LibreSprieLibreSpriteLibreSprite is a free and open source program for creating and animating your sprites.
lunacyLunacyLunacy is a design application that keeps your flow with AI tools and built-in graphics.
PaletaPaletaPaleta captures the dominant color palette from any image and manage the palettes.
PixeloramaPixeloramaPixelorama is a free and open source pixel art editor.
photocollagePhotoCollagePhotoCollage is a graphical tool to make photo collage posters.
PPLogoPrestoPalettePrestoPalette is a tool for artists to create harmonious color palettes in seconds.
UpscalerUpscalerUpscaler is an application that allows you to upscale and enhance a given image.