I want to change the appearance of the labels, and change the label text color to black

Please follow the steps below to change the display format of the labels.

Change the appearance of the labels

1. Tap on "Settings" in Simple Calendar.
2. Tap on "Label Display Format" under "General Settings."
3. Select the label display format from the options.
4. Go back to "Settings" in Simple Calendar and tap on "Add/Edit Calendar."
5. Select the calendar whose appearance you want to change.
6. In the displayed edit screen, change the text color and background color as desired.

Change the label text color

Tap on the settings (gear icon) in the upper right to go to the settings screen. Tap on "Label Display Format" under "General Settings" → "Label Only."

Then return to the settings screen, press "Add/Edit Calendar," tap the calendar whose appearance you want to change, change the "Text Color," and tap "Done."