Be careful with old versions!
These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.
0.2.2 - [ * ] Fix uninstall/undo bugs.
0.2.1 - [ * ] Fix typeError: aId is undefined (resource://app/modules/CustomizableUI.jsm) when new windows are created (https://bugzilla.mozilla.org/show_bug.cgi?id=1009897).
0.2.0 - [ * ] Fix codes due to location change of the scratchpad.dtd file in FF45.
0.1.8 - [ * ] Reset option will be within the colour picker panel and this panel will now be available only in design mode.
0.1.7 - [ * ] Use CustomizableUI.jsm for button creation.
0.1.6 - [ * ] Fix codes due to Mozilla addition of the UI panel in FF29. When in design mode, the UI panel will be inaccessible. When in the UI panel, the UI Eraser button will be disabled.
0.1.5 - [ * ] Fix codes due to Mozilla removal of add-ons toolbar in FF29. If first run, button will be placed on the navigation bar. And if found on the add-ons toolbar, will be moved to the palette.
0.1.4 - [ + ] Localize "reset", "display" and "hide" labels.
0.1.3 - [ * ] Fix button error when there is no sibling or error sibling on the add-on bar (due to the ids of Jetpack widgets).