added coloured tree nodes example and a custom colours for bar series…

… example

misc/coloured_tree_node.py

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+# Credit @v-ein https://discord.com/channels/736279277242417272/1207174250604011520/1207260729560793129
+
+from contextlib import contextmanager
+from typing import Generator, Optional, Tuple, Union
+import dearpygui.dearpygui as dpg
+
+dpg.create_context()
+
+dpg.create_viewport(title="Test", width=600, height=600)
+
+dpg.setup_dearpygui()
+dpg.show_viewport()
+
+#===============================================================================
+
+with dpg.window(label="Tree nodes", width=200, height=150):
+    with dpg.tree_node(label="Root", default_open=True):
+        dpg.add_text("Lorem")
+        with dpg.tree_node(label="Branch", default_open=True):
+            dpg.add_button(label="ipsum")
+            dpg.add_tree_node(label="Leaf", leaf=True)
+
+#===============================================================================
+
+with dpg.window(label="Headers", width=200, height=150, pos=(200, 0)):
+
+    with dpg.theme() as tree_like_theme:
+        with dpg.theme_component(dpg.mvCollapsingHeader):
+            dpg.add_theme_style(dpg.mvStyleVar_FramePadding, 4, 0)
+
+    with dpg.collapsing_header(label="Root", default_open=True):
+        dpg.bind_item_theme(dpg.last_item(), tree_like_theme)
+        with dpg.group(indent=20):
+            dpg.add_text("Lorem")
+            with dpg.collapsing_header(label="Branch", default_open=True):
+                with dpg.group(indent=20):
+                    dpg.add_button(label="ipsum")
+                    dpg.add_collapsing_header(label="Leaf", leaf=True)
+
+#===============================================================================
+
+@contextmanager
+def colored_tree_node(label: str, color: Optional[Tuple[int, ...]] = None, leaf: bool = False, **kwargs) -> Generator[Union[int, str], None, None]:
+    # We use a separate group to adjust padding, so that the header itself can be
+    # customized further by binding a theme directly to it.
+    with dpg.group():
+        dpg.bind_item_theme(dpg.last_item(), "tree-node-theme")
+        with dpg.collapsing_header(label=label, leaf=leaf, indent=(21 if leaf else 0), **kwargs) as node:
+            if color:
+                with dpg.theme() as color_theme:
+                    with dpg.theme_component(dpg.mvCollapsingHeader):
+                        dpg.add_theme_color(dpg.mvThemeCol_Header, color)
+                        # note: you can add colors for active/hovered, too, e.g. blend them with white
+                dpg.bind_item_theme(node, color_theme)
+            # We need one more group in order to provide indentation AND to reset padding back to normal.
+            # Indent in a normal tree node is determined by dpg.mvStyleVar_IndentSpacing,
+            # which defaults to 21.
+            with dpg.group(indent=21):
+                dpg.bind_item_theme(dpg.last_item(), "default-padding")
+                yield node
+
+with dpg.window(label="Wrappers", width=200, height=150, pos=(400, 0)):
+
+    with dpg.theme(tag="tree-node-theme") as tree_like_theme:
+        with dpg.theme_component(dpg.mvCollapsingHeader):
+            dpg.add_theme_style(dpg.mvStyleVar_FramePadding, 4, 0)
+            # We need the default color here so that nested headers don't pick up
+            # the parent's color.
+            dpg.add_theme_color(dpg.mvThemeCol_Header, (51, 51, 55, 255))
+
+    with dpg.theme(tag="default-padding"):
+        with dpg.theme_component(dpg.mvAll):
+            dpg.add_theme_style(dpg.mvStyleVar_FramePadding, 4, 3)
+
+    with colored_tree_node(label="Root", default_open=True) as root:
+        dpg.add_text("Lorem")
+        with colored_tree_node(label="Branch", default_open=True, color=(192, 0, 0)):
+            dpg.add_button(label="ipsum")
+            with colored_tree_node(label="Leaf", leaf=True):
+                pass
+
+
+dpg.start_dearpygui()
+dpg.destroy_context()

plots/plot_bar_series_custom_colours.py

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+import dearpygui.dearpygui as dpg
+dpg.create_context()
+
+
+with dpg.theme() as blue_theme:
+    with dpg.theme_component():
+        dpg.add_theme_color(
+            dpg.mvPlotCol_Fill, (0, 119, 200, 255), category=dpg.mvThemeCat_Plots
+        )
+
+with dpg.theme() as red_theme:
+    with dpg.theme_component():
+        dpg.add_theme_color(
+            dpg.mvPlotCol_Fill, (210, 4, 45, 255), category=dpg.mvThemeCat_Plots
+        )
+
+with dpg.theme() as yellow_theme:
+    with dpg.theme_component():
+        dpg.add_theme_color(
+            dpg.mvPlotCol_Fill, (253, 218, 13, 255), category=dpg.mvThemeCat_Plots
+        )
+
+
+with dpg.window():
+    with dpg.plot():
+        dpg.add_plot_legend()
+        dpg.add_plot_axis(dpg.mvXAxis)
+        with dpg.plot_axis(dpg.mvYAxis):
+            dpg.add_bar_series([10, 20, 30], [30, 75, 90], label="Foo", weight=1)
+            dpg.bind_item_theme(dpg.last_item(), blue_theme)
+            dpg.add_bar_series([11, 21, 31], [45, 65, 72], label="Bar", weight=1)
+            dpg.bind_item_theme(dpg.last_item(), red_theme)
+            dpg.add_bar_series([12, 22, 32], [20, 85, 80], label="Baz", weight=1)
+            dpg.bind_item_theme(dpg.last_item(), yellow_theme)
+
+
+dpg.create_viewport(width=800, height=600, title="Bar Series Custom Colours")
+dpg.setup_dearpygui()
+dpg.show_viewport()
+dpg.start_dearpygui()
+dpg.destroy_context()