Question about Ducky One 2 SF

Oh, sorry, I only saw that you have the DE layout now.

how do you reset it so that it flashes again in the same way as the raunbow?

With "Fn" + "Alt" (the left Alt) and "Z" you can go through the different light modes (e.g. breathing, colour change, always the same colour, etc.). Keep Fn + Alt pressed, each press on Z changes to another mode.

- Change the colour of all keys (variant 1):
Press "Fn" + "Alt", then Y, X and C should light up in red, green and blue. You can adjust each colour in ten steps, simply hold down Fn + Alt and press C, for example, to turn off blue or make it glow less intensely.

- Change the colour of a single key (variant 2):
If you press "Fn" + "Alt" + "Caps Lock" for more than 3 seconds, you enter the mode in which you can select an individual colour for each key. You have two memory slots for this, namely the keys "B" and "G". First select the memory slot (you can let go of the other keys). Then you can select the colour by pressing "Caps Lock" with the Y, X and C keys (as explained in the first section). Caps Lock always shows you the currently selected colour. Then release all the keys and press the keys that are to receive this colour individually.

Example: You want to make WASD blue, leave the rest as it is, in colour profile B.
a.) Press Fn + Alt + CAPS LOCK for 3 seconds.
b.) "Press "B
CAPS LOCK lights up white. This means that red and green must be switched off so that CAPS LOCK shows blue.
c.) Press CAPS LOCK + Y, then press CAPS LOCK + X, CAPS LOCK now lights up blue.
d.) Press W, A, S, D in succession, should now be blue.
e.) Exit the editing mode with "CAPS LOCK" + "Left Shift".
f.) Now activate the created colour profile with Fn + Alt + B.

IMPORTANT: If you have a key combination with Fn, you must always hold Fn first, otherwise it will not work.

You can also combine variants 1 and 2. For example, in variant 1 make the whole keyboard green, in variant 2 make only WASD blue and then activate the colour profile of variant 2.

Regarding @, this depends on the language set in the operating system. If you have set DE, "Alt Gr" + "Q" should work. (Alt Gr is the right Alt).

The instructions for changing colours should be in the little booklet that comes with the keyboard. The English instructions are in the second part of the book.

Change colour:
Hold down "Alt Gr" + "FN" and then press the "T" key.

@ is no different from any other swiss layout keyboard:
Hold down "Alt Gr" and press the "2" key