Theme adds support for dicts

[LondonClass]

fixes #400

I found that update_theming and load_theme perform similar functions... Do they need to be refactored?

My other goal is to enable UIManager to dynamically replace ui_theme during runtime. If this is necessary, I may try to do it in the future.

[codecov]

Codecov Report

Attention: Patch coverage is 87.50000% with 5 lines in your changes are missing coverage. Please review.

Project coverage is 96.25%. Comparing base (8ef9c8d) to head (aeaf490).

Files	Patch %	Lines
pygame_gui/ui_manager.py	85.71%	3 Missing ⚠️
pygame_gui/core/ui_appearance_theme.py	88.88%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #518      +/-   ##
==========================================
- Coverage   96.26%   96.25%   -0.01%     
==========================================
  Files          88       88              
  Lines       12472    12498      +26     
==========================================
+ Hits        12006    12030      +24     
- Misses        466      468       +2     

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[MyreMylar]

Cool, looks like this could just use a quick unit test of changing a theme by passing in a dictionary instead of a theme file.

My other goal is to enable UIManager to dynamically replace ui_theme during runtime. If this is necessary, I may try to do it in the future.

You should be able to do this fairly easily in the UIMananger with something like:

def load_and_update_theming(theme_file_path: str)
  # load theme data
  self.ui_theme.load_theme(theme_file_path)
  # update UIElements
  for sprite in self.ui_group.sprites():
      sprite.rebuild_from_changed_theme_data()

Or at least it used to work like that at one point because you could edit the theme files while the apps were running and see the changes live. Maybe it still does!

[LondonClass]

@MyreMylar update_theming and load_theme seem to be doing the same thing. I want to remove the update_theming method and merge its functionality into the load_theme. update_single_element_theming may also related to it.

[LondonClass]

You should be able to do this fairly easily in the UIMananger with something like:

def load_and_update_theming(theme_file_path: str)
  # load theme data
  self.ui_theme.load_theme(theme_file_path)
  # update UIElements
  for sprite in self.ui_group.sprites():
      sprite.rebuild_from_changed_theme_data()

Or at least it used to work like that at one point because you could edit the theme files while the apps were running and see the changes live. Maybe it still does!

My idea is to save multiple UIAppearanceTheme instances and dynamically replace them at runtime, so there is no need to read files repeatedly.

[MyreMylar]

just need to add a test for update theming and this should pass.

[LondonClass]

My idea is to save multiple UIAppearanceTheme instances and dynamically replace them at runtime, so there is no need to read files repeatedly.

Done this.

[MyreMylar]

OK, LGTM 👍