* Add basic layout - WIP
* Add color input min-width -> 80px
* First pass implementation - WIP
* Allow fill to be None
* Fix null Fill color
* refactor fill and stroke options into struct
* toolbar progress - WIP
* Switch is_working_color bool to PenColorType enum
* Add todo
* Add WorkingColorChanged event
* remove unused import
* Add WorkingColor[Primary/Secondary] icons
* Allow new strokes to have no color
* Set to base color when X is pressed (as per req)
* Improve icons for new UI layout design
* Add radio buttons
* Fix menu bar Edit12px -> Edit
* Add tooltips to radio buttons
* Make the color selector only on custom
* Fix edit icon correctly this time (whoops)
* Fix working colors icons
* Changes to improve the UX
* Remove lines obviated by Default::default()
* Make Eyedropper tool use working_color_changed event
* Fix tests
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Co-authored-by: Keavon Chambers <keavon@keavon.com>