Within TinyMCE, check that the new icons are displayed and the style consistent.
Gray icons on gray background makes the icons look washed out. It would somehow improve the contrast by having white background instead.
Please refer to MDL-41633 for the style
Width of TinyMCE iframe narrower than bounding area
The Comment Text Editor for the "Make comment or override grade" Window for Quizzes Gets Cut Off
TinyMce: it's only displayed on half the screen
TinyMce: add separator for colour button to trigger the color picker
Toolbars: the spacing is too large (standard and clean)
TinyMce: on chrome, when the window is too small, the right side of the editor disappear behind the box container.
TinyMce: toggle toolbar once, then another time. The original size of the toggle bar is lost.
TinyMce: rollover effects improvement
TinyMce: the editor appears without space between the icon groups. Once resizing the editor you can not go back to this state.
TinyMce: when rollover, there is a little white space at the end of a button
TinyMCE editing area has NO whitespace padding at all
Edit PDF: create layout mockup
Solution for zIndex values in modal dialogues