Hello!
Are you using Shadowtouch's touch ring for brush size adjustment?
The shortcut keys in the digital board or the realization of its function is actually the shortcut keys in the software, for example, you said this brush size control, you can look at the touch ring of this function in the settings, in fact, these two shortcuts, in the PS software, these two shortcuts are the realization of brush zoom in and out of, so if your touch ring can not be realized brush zoom in and out of the function, you can use the If the keyboard shortcuts also can not, it may be a problem with the software or the mode is not right, for example, if the input method is switched to the Chinese input mode, these functions can not be realized.
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