The contextual sections variant of the notebookbar deals a lot with styles. Among others the image style is such a basic function made salient by a big button. However, the actual image "styles" in this menu are only dummies.
So what we need are functions for setting an image to default/greyscale/black|white/watermark (ideally per radiobuttons) ("colormode" in sidebar), functions to increase/decrease brightness/contrast, and finally to colorize.
Even better would be to have the various Filter there (Invert, Smooth, Sharpen...).
So we need an UNO command that can accept query information for all image adjustment options, so its easy to create custom presets without having to create individual UNO commands for each of them. It would look something like this.
All query fields for visible in the Image content panel of the Properties sidebar deck.
(In reply to Heiko Tietze from comment #0)
> Even better would be to have the various Filter there (Invert, Smooth,
There are UNO commands already for these filters, but they are destructive by nature, so it wouldnt be useful to have. (bug 87396).
This bug report appears to be obsolete.
1.) There is no "big style button"
2.) At least some of the items (like brightness, filter) widgets exist
The concept is explained in https://wiki.documentfoundation.org/Design/Guidelines/ToolBar and more verbosely in https://design.blog.documentfoundation.org/2016/12/21/evolving-past-the-restrictions-of-toolbars/. The Notebookbar variant is supposed to allow users to spot most relevant functions (which are mostly styles) in a glimpse by using large buttons.
I'm okay if we decide to not realize this NB. Although it would be a pity to just follow what others do.