A -Traditional File or action menu found in most windowed applications.
B -Toolbar - This is where you can choose your brushes, set parameters such as opacity and size and other settings.
C -Sidebars for the Movable Panels/Dockers. In some applications, these are known as Dockable areas. Krita also allows you to dock panels at the top and/or bottom as well.
D -Status Bar - This space shows the preferred mode for showing selection i.e. marching ants or mask mode, your selected brush preset, Color Space, image size and provides a convenient zoom control.
E -Floating Panel/Docker - These can be “popped” in and out of their docks at any time in order to see a greater range of options. A good example of this would be the Preset Docker or the Palette Docker.
Your canvas sits in the middle and unlike traditional paper or even most digital painting applications, Krita provides the artist with a scrolling canvas of infinite size.
File
Edit
View
Image
Layer
Select
Filter
Tools
Settings
Window
Help
Create new document
Open an existing document
Save
Undo last action
Redo last action
Degraded
Fill patterns
Colour selection
Edit brush preferences
Select brush preset
Fusion mode
Set the eraser mode
Preserve alpha
Reload original presets
Opacity
Brush size
Horizontal mirror tool
Vertical mirror tool
Select workspace
Shape selection
Text
Shape editing
Calligraphy
Freehand brush
Line
Rectangle
Ellipse
Polygon
Polygonal line
Bezier curve
Freehand route
Dynamic brush
Multi brush
Transform a layer or selection
Move tool
Cutout
Degraded
Color picker
Editing the coloring mask
Smart patch
Filling
Assistant
Measurement
Reference images
Rectangular selection
Elliptical selection
Polygonal selection
Selection by contour
Contiguous area selection
Similar color selection
Selection by beizer curve
Magnetic pick
Advanced color picker
Tool options
Brush presets
Layers
Channels
Restart rotation
Properties
search bar
Use the same aspect as pixels
Zoom
Brush Presets
Palette Docker
For more information visit the official website of Krita (See)