Multi-Row Toolbar with Colored Icons
Former versions of Acrobat, prior to Acrobat DC, had the capability of showing tools on two rows at the top of the document pane.
The lack of colorization of icons in DC, the basic shapes and the inability to show nearly all tools in the toolbar makes it very difficult and time consuming to edit and markup documents. I most often use the full array of tools and find it time consuming to search for tools that don't "fit" on the single row toolbar.
Please consider a options for users to add a second row or more to the tool bar or some way to show nearly all of the tools while working on a document? The additional screen "real estate" consumed by extra toolbars is not an issue since newer monitors are very large and have high resolution.
Please see the attached screenshot, as a reference to older versions of Acrobat that had the option for two-row toolbars and detailed, colorized tool icons

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Zach Bjornson commented
Colorized icons especially would help me find tools much faster.
I never had a need for a "find tools" search box before DC's simplified design hid everything.
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tims commented
The proposed capabilities would increase productivity when using Acrobat by 200%