There is still one issue when you resize the window while one tab is opened, the tab content disappears and the tab is still unfolded.
For the tab color, if you always display the 12 ones, you can remove the scrolling on the list.
When you select a new color the previous one is still selected, so when you open the tab again, both colors are selected (grey border).
We'll have to think of better colors for the tabs (the shapes are black on black border).
For text, Bold/Italic do not work but I guess it's due to the fix on the GCDialogBox. But instead of modifying the text for Bold and Italic, I would modify the Aa with bold and italic.

In T9028#148565, @jjazeix wrote:

...

For the tab color, if you always display the 12 ones, you can remove the scrolling on the list.

The scrolling I asked for it thinking we would have more color slots than the panel can display at once.. but indeed if they're always all available, no need for it.

We'll have to think of better colors for the tabs (the shapes are black on black border).

I asked for the dark/black color of the panel on purpose, as it helps to focus on the drawing content much better than light or colored tabs.
But sure we'll need to adapt the remaining old icons for it.

In T9028#148572, @timotheegiet wrote:

In T9028#148565, @jjazeix wrote:

...

For the tab color, if you always display the 12 ones, you can remove the scrolling on the list.

The scrolling I asked for it thinking we would have more color slots than the panel can display at once.. but indeed if they're always all available, no need for it.

Yes, I agree :)

We'll have to think of better colors for the tabs (the shapes are black on black border).

I asked for the dark/black color of the panel on purpose, as it helps to focus on the drawing content much better than light or colored tabs.
But sure we'll need to adapt the remaining old icons for it.

Good for me if it is handled later, it was just to raise the point :).