Quote:...I use english version.The A icon is the text tool icon. You need to look at the layers. Text layers have a T icon. If there is no T then you have lost the text properties and it is not editable as text. It is a bitmap (raster) layer.
Quote:No, left side SIZE is not changing text, only size in a small window above text can change it. ..You are not using the text tool correctly. When you change all of the text using the on-canvas tool, the properties are fixed. Start again and use the tool options to set font / size / colour. Read Blighty's post about clearing the text style
FWIW 2.5 minute demo