From 936938b71f95893dffe20ae07d9bec04ed24b7e7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mart=C3=ADn=20Lucas=20Golini?= <spartanj@gmail.com>
Date: Fri, 1 May 2026 01:07:06 -0300
Subject: [PATCH] Added an option to set dynamic theming in the UICodeEditor.

---
 .../layout_separation_list_style_plan.md      | 57 -----------
 .agent/plans/layout_separation_plan.md        | 98 -------------------
 bin/assets/ui/breeze.css                      |  7 +-
 include/eepp/ui/doc/syntaxcolorscheme.hpp     |  4 +-
 include/eepp/ui/uicodeeditor.hpp              |  7 ++
 src/eepp/ui/css/keyframesdefinition.cpp       |  5 +-
 src/eepp/ui/doc/syntaxcolorscheme.cpp         | 55 ++++++++++-
 src/eepp/ui/tools/uicodeeditorsplitter.cpp    |  2 +-
 src/eepp/ui/uicodeeditor.cpp                  | 31 +++++-
 src/eepp/ui/uirichtext.cpp                    |  1 +
 src/tests/unit_tests/fontrendering.cpp        |  2 +-
 11 files changed, 101 insertions(+), 168 deletions(-)
 delete mode 100644 .agent/plans/layout_separation_list_style_plan.md
 delete mode 100644 .agent/plans/layout_separation_plan.md

diff --git a/.agent/plans/layout_separation_list_style_plan.md b/.agent/plans/layout_separation_list_style_plan.md
deleted file mode 100644
index 179bac412..000000000
--- a/.agent/plans/layout_separation_list_style_plan.md
+++ /dev/null
@@ -1,57 +0,0 @@
-# UI Layout Phase 7: CSS List Style Type Plan
-
-This document outlines the architectural plan for implementing the CSS `list-style-type` property within the decoupled layout system. This replaces the current CSS background-image hacks with proper text-based list markers.
-
-**AGENT DIRECTIVE (CRITICAL):** You MUST compile and run the unit tests (`bin/unit_tests/eepp-unit_tests-debug`) after EVERY step. Do NOT proceed to the next step if there is even a 1-pixel difference in visual layout tests. Take a git stash snapshot (`git stash push -m "Phase 7.X passed" && git stash apply`) upon passing a step to keep a checkpoint while continuing to work. **If you need to restore a stash, use `git stash apply` instead of `git stash pop` so the stable snapshot is never lost.**
-
----
-
-## IMPLEMENTATION HAZARDS (READ BEFORE CODING)
-1. **Property Inheritance:** `list-style-type` must be an inherited property so that setting it on `<ul>` or `<ol>` applies it to the `<li>` children.
-2. **Clipping:** `UIRichText` clips its content to the content box (`mSize - mPadding`). In CSS, when `list-style-position` is `outside` (the default), the marker is drawn in the padding/margin area. The marker MUST be drawn outside of the `clipSmartEnable` block in `UIRichText::draw()` to remain visible.
-3. **Sibling Indexing:** Ordered lists (`decimal`, etc.) require knowing the element's index. Only count previous siblings that are actual `<li>` elements (check `getTag() == "li"` or similar).
-
----
-
-## Phase 7: List Style Type implementation
-
-**Step 7.1: CSS Enums and Properties**
-- In `csslayouttypes.hpp`, define:
-  ```cpp
-  enum class CSSListStyleType { None, Disc, Circle, Square, Decimal, LowerAlpha, UpperAlpha, LowerRoman, UpperRoman };
-  ```
-  And its helper functions (`CSSListStyleTypeHelper::fromString`, etc.).
-- In `propertydefinition.hpp`, add `PropertyId::ListStyleType`.
-- In `stylesheetspecification.cpp`, register the property as inherited:
-  ```cpp
-  registerProperty( "list-style-type", "none", true );
-  ```
-- In `UIHTMLWidget`, add `mListStyleType` defaulting to `None`. Update `applyProperty` to parse it.
-- **Validation:** Compile and run all tests. Must pass. (Snapshot)
-
-**Step 7.2: Marker String Generation & Text Cache**
-- In `include/eepp/ui/uirichtext.hpp`, add a `Text mListMarkerText;` member to cache the rendered marker.
-- Add a helper function `String getListMarkerString() const;` that:
-  - Returns `""` for `None`.
-  - Returns appropriate unicode characters for `Disc` ("•"), `Circle` ("○"), `Square` ("■").
-  - For ordered types like `Decimal`, counts preceding `<li>` siblings and formats the string (e.g., `1. `, `2. `).
-- In `UIRichText::updateLayout()`, after styling is resolved, update `mListMarkerText`:
-  - Set its string using `getListMarkerString()`.
-  - Copy the font, size, and color from `mRichText.getFontStyleConfig()`.
-- **Validation:** Compile and run all tests. (Snapshot)
-
-**Step 7.3: Rendering the Marker**
-- In `UIRichText::draw()`, add logic to render `mListMarkerText` if its string is not empty.
-- **Positioning:**
-  - `X`: `mScreenPos.x + mPaddingPx.Left - mListMarkerText.getTextWidth() - offset`. (You may use a small hardcoded offset like `0.25em` derived from the font size to give it breathing room from the text).
-  - `Y`: `mScreenPos.y + mPaddingPx.Top`. This aligns it with the start of the first line of text.
-- Ensure the drawing logic is placed *outside* the `if (isClipped()) { clipSmartEnable... }` block so it is not clipped away by the padding.
-- **Validation:** Compile and run all tests. (Snapshot)
-
-**Step 7.4: Remove CSS Hacks & Update Tests**
-- Open `bin/assets/ui/breeze.css` and remove the `background-image`, `background-tint`, `background-position`, and `background-size` hacks for `ol > li` and `ul > li`.
-- Change them to properly use `list-style-type`:
-  - `ul > li { list-style-type: disc; padding-left: 2em; }`
-  - `ol > li { list-style-type: decimal; padding-left: 2em; }`
-- Create a specific unit test in `src/tests/unit_tests/uihtml_tests.cpp` (or a dedicated layout test) to verify `list-style-type: decimal` correctly increments numbers and `list-style-type: disc` draws a bullet.
-- **Validation:** Compile and run all tests. Must pass. (Snapshot)
diff --git a/.agent/plans/layout_separation_plan.md b/.agent/plans/layout_separation_plan.md
deleted file mode 100644
index ecce87955..000000000
--- a/.agent/plans/layout_separation_plan.md
+++ /dev/null
@@ -1,98 +0,0 @@
-# UI Layout Separation & CSS Display/Position Support Plan (Strict Implementation Guide)
-
-This document outlines the architectural plan for decoupling layout logic from specific widgets (like `UIRichText` and `UIHTMLTable`), introducing a robust generic layouter system, and supporting standard CSS `display` and `position` properties.
-
-**AGENT DIRECTIVE (CRITICAL):** You are Negen. Fulfill this plan iteratively. You MUST compile and run the unit tests (`bin/unit_tests/eepp-unit_tests-debug`) after EVERY step. Do NOT proceed to the next step if there is even a 1-pixel difference in visual layout tests. Take a git stash snapshot (`git stash push -m "Phase X.Y passed" && git stash apply`) upon passing a step to keep a checkpoint while continuing to work. **If you need to restore a stash, use `git stash apply` instead of `git stash pop` so the stable snapshot is never lost.**
-
----
-
-## IMPLEMENTATION HAZARDS (READ BEFORE CODING)
-When migrating logic from Widgets to Layouters, you will face these traps:
-1. **Pixel vs DP APIs:** Widgets have `getSize()` and `getPixelsSize()`, `getPadding()` and `getPixelsPadding()`. **Layouters MUST exclusively use the `Pixels` variants** (`getPixelsSize()`, `getPixelsPadding()`, `getLayoutPixelsMargin()`). Using the non-pixel variants will cause massive visual regressions due to DPI scaling.
-2. **Infinite Recursion:** When a Layouter delegates to a widget's intrinsic width calculation, or vice versa, you must strictly manage the dirty flags (e.g., `mIntrinsicWidthsDirty = false`). Failure to clear these flags inside `computeIntrinsicWidths` will cause stack overflows.
-3. **Table Hierarchy:** In HTML/eepp tables, the hierarchy is `Table` -> `TableSection` (`thead`, `tbody`) -> `TableRow` (`tr`) -> `TableCell` (`td`). The original code often checks `row->getParent()->isType(...)`. If you change sections to `UIHTMLWidget`, be extremely careful not to accidentally assign them a `BlockLayouter` that overrides the `TableLayouter`'s positioning.
-
----
-
-## Phase 1: Core Infrastructure
-
-**Step 1.1: CSS Properties & Enums**
-- Add `Display`, `Position`, `Top`, `Right`, `Bottom`, `Left`, `ZIndex` to `PropertyId` enum (`propertydefinition.hpp`).
-- Create `CSSDisplay` and `CSSPosition` enums (`csslayouttypes.hpp`).
-- **Validation:** Compile and run all tests. Must pass. (Snapshot)
-
-**Step 1.2: Layouter Interfaces & Manager**
-- Create `UILayouter` base interface (`uilayouter.hpp`). Must hold `UIWidget* mContainer` and `bool mValid`.
-- Create `UILayouterManager` (`uilayoutermanager.hpp`/`cpp`) to spawn layouters.
-- Create empty skeletons for `BlockLayouter`, `InlineLayouter`, `TableLayouter`, `NoneLayouter`.
-- **CRITICAL:** Run `premake4` to regenerate makefiles now that new files are added.
-- **Validation:** Compile and run all tests. Must pass. (Snapshot)
-
----
-
-## Phase 2: UIHTMLWidget Base Class
-
-**Step 2.1: Implement UIHTMLWidget**
-- Create `UIHTMLWidget` inheriting from `UILayout`.
-- Add CSS properties (`mDisplay`, `mPosition`, offsets, `mZIndex`).
-- Implement `getLayouter()` which lazily instantiates via `UILayouterManager`.
-- Override `onChildCountChange` and `onDisplayChange` to call `if (mLayouter) mLayouter->invalidate()`.
-- **Validation:** Compile and run all tests. Must pass. (Snapshot)
-
----
-
-## Phase 3: UIRichText & BlockLayouter (High Risk)
-
-**Step 3.1: Inheritance and Access Control**
-- Change `UIRichText` and `UITextSpan` to inherit from `UIHTMLWidget`.
-- Add `BlockLayouter` and `InlineLayouter` as `friend class` to `UIRichText`, `UILayout`, and `UIWidget`.
-- **CRITICAL:** In `UIHTMLWidget::getLayouter()`, temporarily return `nullptr`. We want `UIRichText` to still use its monolithic logic while we set up inheritance.
-- **Validation:** Compile and run `UIRichText.*` tests. Must pass exactly. (Snapshot)
-
-**Step 3.2: Implement BlockLayouter**
-- Copy `UIRichText::updateLayout()`, `getMinIntrinsicWidth()`, and `getMaxIntrinsicWidth()` into `BlockLayouter`.
-- **INVARIANTS TO MAINTAIN:**
-  - You MUST use `getPixelsPadding()` everywhere `mPaddingPx` was used.
-  - You MUST use `getPixelsSize()` everywhere `mSize` was used.
-  - The `mResizedCount` loop must be preserved: if `richText->mResizedCount > 0` after `setInternalPixelsWidth/Height`, `positionRichTextChildren` must run again.
-  - Do NOT skip `MatchParent` children in the `positionRichTextChildren` while loop.
-- Enable `BlockLayouter` for `UIRichText` (but explicitly disable it for `UI_TYPE_HTML_TABLE_CELL` for now to isolate bugs).
-- **Validation:** Compile and run `UIRichText.*` tests. **Zero pixel difference allowed.** (Snapshot)
-
-**Step 3.3: Implement InlineLayouter**
-- Replicate inline logic for `UITextSpan` into `InlineLayouter`.
-- **Validation:** Compile and run all tests. (Snapshot)
-
----
-
-## Phase 4: UIHTMLTable Refactoring (High Risk)
-
-**Step 4.1: Table Base Classes & Friends**
-- Change `UIHTMLTable`, `UIHTMLTableRow`, `UIHTMLTableHead`, `UIHTMLTableBody`, `UIHTMLTableFooter` to inherit from `UIHTMLWidget`.
-- Make `TableLayouter` a friend of `UIHTMLTable`.
-- **CRITICAL:** `UILayouterManager` MUST return `nullptr` for Table Sections and Table Rows. Only the `Table` itself gets `TableLayouter`.
-- **Validation:** Compile and run `UIHTMLTable.*` tests. (Snapshot)
-
-**Step 4.2: Implement TableLayouter**
-- Move `UIHTMLTable::updateLayout()` and `computeIntrinsicWidths()` into `TableLayouter`.
-- **INVARIANTS TO MAINTAIN:**
-  - `computeIntrinsicWidths` MUST clear `table->mIntrinsicWidthsDirty = false;` at all exit points to prevent recursion.
-  - `currentY` for rows MUST be accumulated exactly as: `Float currentY = padding.Top + mCellspacing - headHeight;` then incremented by `rowHeight + mCellspacing`. Do not attempt to "fix" this math; it offsets based on section anchors.
-  - When determining `headHeight`, use `row->getParent()->isType(UI_TYPE_HTML_TABLE_HEAD)`. Do not check the cell's parent.
-- Enable `TableLayouter` in `getLayouter()`.
-- **Validation:** Compile and run `UIHTMLTable.*` tests. **Zero pixel difference allowed.** (Snapshot)
-
-**Step 4.3: Unify TableCell with BlockLayouter**
-- Now that TableLayouter is proven, allow `UILayouterManager` to return `BlockLayouter` for `CSSDisplay::TableCell`.
-- Ensure `BlockLayouter` does NOT override fixed widths if the container is a `TableCell` (the table layouter owns the cell width).
-- **Validation:** Run all tests. (Snapshot)
-
----
-
-## Phase 5: CSS Position (Out-of-Flow)
-
-**Step 5.1: Position Implementation**
-- Implement `getContainingBlock()` in `UIHTMLWidget`.
-- Update layouters to skip children with `position: absolute|fixed`.
-- Add `positionOutOfFlowChildren()` to `UIHTMLWidget::updateLayout()` after the layouter finishes.
-- **Validation:** Compile and run all tests. Existing UI should remain unaffected. (Snapshot)
\ No newline at end of file
diff --git a/bin/assets/ui/breeze.css b/bin/assets/ui/breeze.css
index ae277236e..dadd802b8 100644
--- a/bin/assets/ui/breeze.css
+++ b/bin/assets/ui/breeze.css
@@ -81,6 +81,7 @@ em {
 	font-style: italic;
 }
 
+CodeEditor,
 code {
 	font-family: monospace;
 }
@@ -224,13 +225,11 @@ MarkdownView table > thead > tr > th {
 }
 
 MarkdownView CodeEditor,
-MarkdownView code {
-	padding: 4dp;
-}
-
 MarkdownView code {
 	font-family: monospace;
 	background-color: var(--button-back);
+	font-size: 11dp;
+	padding: 4dp;
 }
 
 pushbutton,
diff --git a/include/eepp/ui/doc/syntaxcolorscheme.hpp b/include/eepp/ui/doc/syntaxcolorscheme.hpp
index f550b9f8a..417ab1620 100644
--- a/include/eepp/ui/doc/syntaxcolorscheme.hpp
+++ b/include/eepp/ui/doc/syntaxcolorscheme.hpp
@@ -260,7 +260,9 @@ constexpr auto SyntaxStyleEmpty() {
  */
 class EE_API SyntaxColorScheme {
   public:
-	static SyntaxColorScheme getDefault();
+	static SyntaxColorScheme getDefaultDark();
+
+	static SyntaxColorScheme getDefaultLight();
 
 	static std::vector<SyntaxColorScheme> loadFromStream( IOStream& stream );
 
diff --git a/include/eepp/ui/uicodeeditor.hpp b/include/eepp/ui/uicodeeditor.hpp
index 7bd82fe35..2c2d4f1de 100644
--- a/include/eepp/ui/uicodeeditor.hpp
+++ b/include/eepp/ui/uicodeeditor.hpp
@@ -852,6 +852,10 @@ class EE_API UICodeEditor : public UIWidget, public TextDocument::Client {
 
 	void setUseDefaultStyle( bool use );
 
+	bool dynamicTheming() const { return mDynamicTheming; }
+
+	void setDynamicTheming( bool set );
+
   protected:
 	struct LastXOffset {
 		TextPosition position{ 0, 0 };
@@ -901,6 +905,7 @@ class EE_API UICodeEditor : public UIWidget, public TextDocument::Client {
 	bool mTabStops{ false };
 	bool mKerningEnabled{ false };
 	bool mDisableScrollInvalidation{ false };
+	bool mDynamicTheming{ false };
 	DocumentView mDocView;
 	Clock mBlinkTimer;
 	Time mBlinkTime;
@@ -1229,6 +1234,8 @@ class EE_API UICodeEditor : public UIWidget, public TextDocument::Client {
 	virtual void onClassChange();
 
 	inline bool needsHorizontalLength() const;
+
+	void updateDynamicTheme();
 };
 
 }} // namespace EE::UI
diff --git a/src/eepp/ui/css/keyframesdefinition.cpp b/src/eepp/ui/css/keyframesdefinition.cpp
index de9224f7d..bf7c7082e 100644
--- a/src/eepp/ui/css/keyframesdefinition.cpp
+++ b/src/eepp/ui/css/keyframesdefinition.cpp
@@ -41,8 +41,9 @@ KeyframesDefinition::getPropertyDefinitionList() const {
 	std::map<PropertyId, const PropertyDefinition*> propDefs;
 	for ( auto& block : keyframeBlocks ) {
 		for ( auto& property : block.second.properties ) {
-			propDefs[property.second.getPropertyDefinition()->getPropertyId()] =
-				property.second.getPropertyDefinition();
+			auto propDef = property.second.getPropertyDefinition();
+			if ( propDef )
+				propDefs[propDef->getPropertyId()] = property.second.getPropertyDefinition();
 		}
 	}
 	return propDefs;
diff --git a/src/eepp/ui/doc/syntaxcolorscheme.cpp b/src/eepp/ui/doc/syntaxcolorscheme.cpp
index 2fb94daed..6ccc7b314 100644
--- a/src/eepp/ui/doc/syntaxcolorscheme.cpp
+++ b/src/eepp/ui/doc/syntaxcolorscheme.cpp
@@ -37,7 +37,7 @@ namespace EE { namespace UI { namespace Doc {
 // "minimap_highlight" (Minimap text highlight color)
 // "minimap_visible_area" (Minimap visible area marker color)
 
-SyntaxColorScheme SyntaxColorScheme::getDefault() {
+SyntaxColorScheme SyntaxColorScheme::getDefaultDark() {
 	return {
 		"eepp",
 		{
@@ -86,6 +86,55 @@ SyntaxColorScheme SyntaxColorScheme::getDefault() {
 		  { "minimap_visible_area"_sst, Color( "#FFFFFF0A" ) } } };
 }
 
+SyntaxColorScheme SyntaxColorScheme::getDefaultLight() {
+	return {
+		"github",
+		{
+			{ "normal"_sst, Color( "#24292e" ) },
+			{ "symbol"_sst, Color( "#24292e" ) },
+			{ "comment"_sst, Color( "#6a737d" ) },
+			{ "keyword"_sst, Color( "#d73a49" ) },
+			{ "type"_sst, Color( "#d73a49" ) },
+			{ "parameter"_sst, Color( "#005cc5" ) },
+			{ "number"_sst, Color( "#005cc5" ) },
+			{ "literal"_sst, Color( "#005cc5" ) },
+			{ "string"_sst, Color( "#032f62" ) },
+			{ "operator"_sst, Color( "#d73a49" ) },
+			{ "function"_sst, Color( "#005cc5" ) },
+			{ "link"_sst, Color( "#0366d6" ) }, // Using 'accent' for link color
+			{ "link_hover"_sst, { Color::Transparent, Color::Transparent, Text::Underlined } },
+		},
+		{ { "background"_sst, Color( "#fbfbfb" ) },
+		  { "widget_background"_sst, Color( "#f6f6f6" ) },
+		  { "text"_sst, Color( "#404040" ) },
+		  { "caret"_sst, Color( "#181818" ) },
+		  { "selection"_sst, Color( "#b7dce8" ) },
+		  { "line_highlight"_sst, Color( "#f2f2f2" ) },
+		  { "line_number"_sst, Color( "#d0d0d0" ) },
+		  { "line_number2"_sst, Color( "#808080" ) },
+		  // eepp colors
+		  { "gutter_background"_sst, Color( "#fbfbfb" ) },
+		  { "whitespace"_sst, Color( "#b7dce8" ) },
+		  { "line_break_column"_sst, Color( "#d0d0d099" ) },
+		  { "matching_bracket"_sst, Color( "#00000033" ) }, // Dark transparent for light theme
+		  { "matching_selection"_sst, Color( "#a1c8d6" ) },
+		  { "matching_search"_sst, Color( "#e8e8e8" ) },
+		  { "suggestion"_sst, { Color( "#1d1f27" ), Color( "#e1e1e6" ), Text::Regular } },
+		  { "suggestion_scrollbar"_sst, { Color( "#3daee9" ) } },
+		  { "suggestion_selected"_sst, { Color( "#222533" ), Color( "#ffffff" ), Text::Regular } },
+		  { "error"_sst, { Color( "#990000FF" ) } },
+		  { "warning"_sst, { Color( "#999900FF" ) } },
+		  { "notice"_sst, Color( "#8abdff" ) },
+		  { "selection_region"_sst, Color( "#b7dce877" ) },
+		  // minimap colors
+		  { "minimap_background"_sst, Color( "#fbfbfbAA" ) },
+		  { "minimap_current_line"_sst, Color( "#0000000A" ) },
+		  { "minimap_hover"_sst, Color( "#00000010" ) },
+		  { "minimap_selection"_sst, Color( "#b7dce880" ) },
+		  { "minimap_highlight"_sst, Color( "#FF00FFFF" ) },
+		  { "minimap_visible_area"_sst, Color( "#00000011" ) } } };
+}
+
 SyntaxColorScheme::Style parseStyle(
 	const std::string& value, bool* colorWasSet = nullptr,
 	const UnorderedMap<SyntaxStyleType, SyntaxColorScheme::Style>* syntaxColors = nullptr ) {
@@ -151,7 +200,7 @@ SyntaxColorScheme::Style parseStyle(
 std::vector<SyntaxColorScheme> SyntaxColorScheme::loadFromStream( IOStream& stream ) {
 	Clock clock;
 	std::vector<SyntaxColorScheme> colorSchemes;
-	SyntaxColorScheme refColorScheme( getDefault() );
+	SyntaxColorScheme refColorScheme( getDefaultDark() );
 	IniFile ini( stream );
 	for ( size_t keyIdx = 0; keyIdx < ini.getNumKeys(); keyIdx++ ) {
 		SyntaxColorScheme colorScheme;
@@ -216,7 +265,7 @@ SyntaxColorScheme::SyntaxColorScheme( const std::string& name,
 	mName( name ), mSyntaxColors( syntaxColors ), mEditorColors( editorColors ) {}
 
 static const SyntaxColorScheme::Style StyleEmpty = { Color::Transparent };
-static const SyntaxColorScheme StyleDefault = SyntaxColorScheme::getDefault();
+static const SyntaxColorScheme StyleDefault = SyntaxColorScheme::getDefaultDark();
 
 const SyntaxColorScheme::Style&
 SyntaxColorScheme::getSyntaxStyle( const SyntaxStyleType& type ) const {
diff --git a/src/eepp/ui/tools/uicodeeditorsplitter.cpp b/src/eepp/ui/tools/uicodeeditorsplitter.cpp
index fe4a46ddb..fbb3406a8 100644
--- a/src/eepp/ui/tools/uicodeeditorsplitter.cpp
+++ b/src/eepp/ui/tools/uicodeeditorsplitter.cpp
@@ -105,7 +105,7 @@ UICodeEditorSplitter::UICodeEditorSplitter( UICodeEditorSplitter::Client* client
 								  ? initColorScheme
 								  : colorSchemes[0].getName();
 	} else {
-		mColorSchemes["default"] = SyntaxColorScheme::getDefault();
+		mColorSchemes["default"] = SyntaxColorScheme::getDefaultDark();
 		mCurrentColorScheme = "default";
 	}
 }
diff --git a/src/eepp/ui/uicodeeditor.cpp b/src/eepp/ui/uicodeeditor.cpp
index 08243ffa5..96c3f223e 100644
--- a/src/eepp/ui/uicodeeditor.cpp
+++ b/src/eepp/ui/uicodeeditor.cpp
@@ -1,3 +1,4 @@
+#include "eepp/ui/uistyle.hpp"
 #include <algorithm>
 #include <eepp/graphics/fontmanager.hpp>
 #include <eepp/graphics/fonttruetype.hpp>
@@ -155,7 +156,7 @@ UICodeEditor::UICodeEditor( const std::string& elementTag, const bool& autoRegis
 	mHeightPolicy = SizePolicy::Fixed;
 	mFlags |= UI_TAB_STOP | UI_OWNS_CHILDREN_POSITION | UI_SCROLLABLE;
 	setTextSelection( true );
-	setColorScheme( SyntaxColorScheme::getDefault() );
+	setColorScheme( SyntaxColorScheme::getDefaultDark() );
 	refreshTag();
 	mDocView.setOnVisibleLineCountChange( [this] {
 		onAutoSize();
@@ -3059,6 +3060,11 @@ bool UICodeEditor::applyProperty( const StyleSheetProperty& attribute ) {
 			setSyntaxDefinition(
 				SyntaxDefinitionManager::instance()->findFromString( attribute.asString() ) );
 			break;
+		case PropertyId::BackgroundColor: {
+			setBackgroundColor( attribute.asColor() );
+			updateDynamicTheme();
+			break;
+		}
 		default:
 			return UIWidget::applyProperty( attribute );
 	}
@@ -5772,4 +5778,27 @@ void UICodeEditor::setUseDefaultStyle( bool use ) {
 	invalidateDraw();
 }
 
+void UICodeEditor::setDynamicTheming( bool set ) {
+	if ( mDynamicTheming != set ) {
+		mDynamicTheming = set;
+		updateDynamicTheme();
+		invalidateDraw();
+	}
+}
+
+void UICodeEditor::updateDynamicTheme() {
+	if ( !mDynamicTheming )
+		return;
+	Color color( getFontColor() );
+	if ( mStyle && mStyle->getProperty( PropertyId::BackgroundColor ) )
+		color = getBackgroundColor();
+	if ( color != Color::Transparent ) {
+		if ( color.perceivedLuminance() > 128 ) {
+			setColorScheme( SyntaxColorScheme::getDefaultLight() );
+		} else {
+			setColorScheme( SyntaxColorScheme::getDefaultDark() );
+		}
+	}
+}
+
 }} // namespace EE::UI
diff --git a/src/eepp/ui/uirichtext.cpp b/src/eepp/ui/uirichtext.cpp
index 84d19f56c..83fe6a026 100644
--- a/src/eepp/ui/uirichtext.cpp
+++ b/src/eepp/ui/uirichtext.cpp
@@ -508,6 +508,7 @@ void UIRichText::loadFromXmlNode( const pugi::xml_node& node ) {
 				UICodeEditor* editor = UICodeEditor::NewWithTag( "code" );
 				if ( editor ) {
 					editor->setParent( this );
+					editor->setDynamicTheming( true );
 					editor->loadFromXmlNode( child );
 					editor->setLayoutSizePolicy( SizePolicy::MatchParent, SizePolicy::WrapContent );
 					editor->setLineWrapMode( LineWrapMode::Word );
diff --git a/src/tests/unit_tests/fontrendering.cpp b/src/tests/unit_tests/fontrendering.cpp
index c6d39e14b..23e678d65 100644
--- a/src/tests/unit_tests/fontrendering.cpp
+++ b/src/tests/unit_tests/fontrendering.cpp
@@ -1006,7 +1006,7 @@ UTEST( FontRendering, TextHardWrap ) {
 			UIApplication::Settings( Sys::getProcessPath() + ".." + FileSystem::getOSSlash(), 1 ) );
 		FileSystem::changeWorkingDirectory( Sys::getProcessPath() );
 
-		auto colors = SyntaxColorScheme::getDefault();
+		auto colors = SyntaxColorScheme::getDefaultDark();
 		auto syntax = SyntaxDefinitionManager::instance()->getByLanguageName( "Markdown" );
 
 		app.getWindow()->setClearColor( colors.getEditorColor( "background"_sst ).toRGB() );