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ImStyle is a library that helps you to manage your Dear ImGui application's style. Load the style from a KDL file rather than hard-coding it into your app. Using ImStyle also allows you to change your app's style without compiling it again (since the style is read from a file).

Without ImStyle you need to set the style in your code:

import nimgl/imgui
...
let style = igGetStyle()
style.alpha = 1f
style.windowPadding = ImVec2(x: 4f, y: 4f)
style.windowMenuButtonPosition = ImGuiDir.Left
style.colors[ord Text] = ImVec4(x: 0f, y: 0f, z: 0f, w: 1f) # RGBA
...

Using ImStyle you will only need to create a KDL file (e.i.: style.kdl), that will look like:

# ImStyle
alpha 1 # -> 1.0
windowPadding 4 4 # -> ImVec2(x: 4.0, y: 4.0)
windowMenuButtonPosition "Left" # ImGuiDir.Left
...
colors {
  Text 0 0 0 1 # -> ImVec4(x: 0f, y: 0f, z: 0f, w: 1f)
  ...
}

And load it in your code:

import imstyle
...
parseKdlFile("style.kdl").loadStyle().setCurrent()
...