My first 2D game in Godot 4.4

addons/colorpicker_presets/README.md

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+# GDQuest ColorPicker Presets
+
+Reads a color presets `gpl` (GIMP Palette) file in the addon local directory, called `presets.gpl`. It adds the colors to the editor ColorPicker for quick access.
+
+This repository includes a `presets.gpl` file as an example. It's the official GDQuest color palette.
+
+## ✗ WARNING
+
+> Compatible: Godot `>= v4.0`
+
+The addon:
+
+1. Doesn't check the length of the color palette/file.
+1. Overwrites the _ColorPicker_ presets whenever you reopen the project or re-enable the addon.
+
+## ✓ Install
+
+### Using [Godot Package Manager](https://github.com/godot-package-manager)
+
+1. `gpm init`.
+1. Follow instructions with [NPMjs package](https://www.npmjs.com/package/gdquest.colorpicker_presets).
+1. Enable the addon from `Project > Project Settings... > Plugins`.
+1. Profit.
+
+### Manual
+
+1. Make a new folder at `res://addons/colorpicker_presets/`.
+1. Copy the contents of this repository into `res://addons/colorpicker_presets/`.
+1. Replace `res://addons/colorpicker_presets/presets.gpl` with your preferred version.
+1. Enable the addon from `Project > Project Settings... > Plugins`.
+1. Profit.
+
+![install project settings](readme/install_project_settings.png)
+
+## Where do I find the presets?
+
+They'll be available in the editor _ColorPicker_.
+
+![ColorPicker presets](readme/colorpicker_presets.png)

addons/colorpicker_presets/colorpicker_presets.gd

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+@tool
+extends EditorPlugin
+
+
+const PRESETS_FILENAME := 'presets.gpl'
+
+
+func _enter_tree() -> void:
+	var presets_path: String = get_script().resource_path.get_base_dir().path_join(PRESETS_FILENAME)
+	var presets_file := FileAccess.open(presets_path, FileAccess.READ)
+
+	if FileAccess.get_open_error() == OK:
+		var presets_raw := presets_file.get_as_text(true).strip_edges().split("\n")
+		presets_file.close()
+		presets_raw = presets_raw.slice(presets_raw.find("#") + 1)
+		var presets := Array(presets_raw).map(
+			func(s: String):
+				var rgb := (Array(s.strip_edges().split(" ").slice(0, -1))
+					.filter(func(s: String): return not s.is_empty())
+					.map(func(s: String): return s.to_int())
+				)
+				return Color8(rgb[0], rgb[1], rgb[2])
+		)
+		get_editor_interface().get_editor_settings().set_project_metadata(
+			"color_picker", "presets", presets
+		)

addons/colorpicker_presets/colorpicker_presets.gd.uid

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+uid://efuldfeh4dud

addons/colorpicker_presets/plugin.cfg

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+[plugin]
+
+name="GDQuest ColorPicker Presets"
+description="Sets the editor color picker presets from
+`presets.hex`, if it exists. The file is local to the
+addon folder."
+author="razcore-rad"
+version="0.0.2-beta"
+script="colorpicker_presets.gd"

addons/colorpicker_presets/presets.gpl

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+GIMP Palette
+Name: gdquest.gpl
+#
+  0 122 195 Blue
+ 16 178 239 BlueAlt
+  6  29  84 BlueDark
+207 221 255 BlueLight
+108  44 218 Purple
+141  25 215 PurpleAlt
+ 40  20  78 PurpleDark
+235 224 255 PurpleLight
+196  29  61 Red
+255  65 125 RedAlt/Pink
+115  39  92 RedDark
+255 219 244 RedLight
+255 183  48 Yellow
+255 213   0 YellowAlt
+222  80  43 YellowDark/Orange
+255 236 201 YellowLight
+ 99 204  95 Green
+159 221  81 GreenAlt/Lime
+ 21  89  63 GreenDark
+221 255 242 GreenLight/Mint
+109  61  44 Brown
+176  87  55 BrownAlt
+106  25   0 BrownDark
+255 227 227 BrownLight
+202 202 202 Gray
+255 255 255 White
+ 39  43  48 Deep
+243 248 254 Light